From 37788f3c9d4b242098dff67f863d808041c0bd59 Mon Sep 17 00:00:00 2001
From: Steve Sanderson <SteveSandersonMS@users.noreply.github.com>
Date: Sat, 5 May 2018 17:55:08 +0100
Subject: [PATCH] In Blazor cshtml, auto-reference Microsoft.AspNetCore.Blazor
 and .Components (#751)

* In Blazor cshtml files, auto-import Microsoft.AspNetCore.Blazor and Microsoft.AspNetCore.Blazor.Components. Fixes #749

* Remove redundant @using directives from tests

* Update assertion in test

* Update all affected baselines
---
 samples/StandaloneApp/_ViewImports.cshtml     |  2 --
 .../BlazorImportProjectFeature.cs             |  7 +++++--
 .../_ViewImports.cshtml                       |  2 --
 .../_ViewImports.cshtml                       |  2 --
 src/shared/BlazorApi.cs                       |  6 ++++--
 .../ComponentRenderingRazorIntegrationTest.cs |  2 --
 .../DeclarationRazorIntegrationTest.cs        |  2 ++
 .../DesignTimeCodeGenerationTest.cs           |  7 -------
 .../RenderingRazorIntegrationTest.cs          |  1 -
 .../RuntimeCodeGenerationTest.cs              | 10 ---------
 .../TestComponent.codegen.cs                  |  7 ++-----
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  5 -----
 .../TestComponent.codegen.cs                  |  9 +++-----
 .../TestComponent.ir.txt                      | 19 ++++++++---------
 .../TestComponent.mappings.txt                | 13 ++++--------
 .../TestComponent.codegen.cs                  |  7 ++-----
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  5 -----
 .../TestComponent.codegen.cs                  |  9 +++-----
 .../TestComponent.ir.txt                      | 19 ++++++++---------
 .../TestComponent.mappings.txt                | 13 ++++--------
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  8 +++----
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  | 11 ++++------
 .../TestComponent.ir.txt                      | 21 +++++++++----------
 .../TestComponent.mappings.txt                | 15 +++++--------
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  8 +++----
 .../TestComponent.codegen.cs                  |  2 ++
 .../Component_WithRef/TestComponent.ir.txt    |  2 ++
 .../TestComponent.mappings.txt                |  6 +++---
 .../Element_WithRef/TestComponent.codegen.cs  |  2 ++
 .../Element_WithRef/TestComponent.ir.txt      |  2 ++
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  9 +++-----
 .../TestComponent.ir.txt                      | 19 ++++++++---------
 .../TestComponent.mappings.txt                | 13 ++++--------
 .../TestComponent.codegen.cs                  |  7 ++-----
 .../TestComponent.ir.txt                      | 11 +++++-----
 .../TestComponent.mappings.txt                |  9 ++------
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../Regression_597/TestComponent.codegen.cs   |  2 ++
 .../Regression_597/TestComponent.ir.txt       |  2 ++
 .../Regression_597/TestComponent.mappings.txt |  6 +++---
 .../TestComponent.codegen.cs                  |  1 +
 .../TestComponent.ir.txt                      |  7 ++++---
 .../TestComponent.codegen.cs                  |  3 ++-
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  1 +
 .../TestComponent.ir.txt                      |  7 ++++---
 .../TestComponent.codegen.cs                  |  3 ++-
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  3 ++-
 .../TestComponent.ir.txt                      | 15 ++++++-------
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../Component_WithRef/TestComponent.ir.txt    |  2 ++
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.mappings.txt                |  4 ++--
 .../Element_WithRef/TestComponent.codegen.cs  |  2 ++
 .../Element_WithRef/TestComponent.ir.txt      |  2 ++
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  3 ++-
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  1 +
 .../TestComponent.ir.txt                      |  9 ++++----
 .../TestComponent.codegen.cs                  |  3 ++-
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  3 ++-
 .../TestComponent.ir.txt                      | 13 ++++++------
 .../TestComponent.mappings.txt                |  4 ++--
 .../TestComponent.codegen.cs                  |  1 +
 .../TestComponent.ir.txt                      |  9 ++++----
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../Regression_597/TestComponent.codegen.cs   |  2 ++
 .../Regression_597/TestComponent.ir.txt       |  2 ++
 .../Regression_597/TestComponent.mappings.txt |  2 +-
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../TestComponent.codegen.cs                  |  2 ++
 .../TestComponent.ir.txt                      |  2 ++
 .../AfterRenderInteropComponent.cshtml        |  3 +--
 .../AsyncEventHandlerComponent.cshtml         |  1 -
 .../BasicTestApp/BindCasesComponent.cshtml    |  3 +--
 .../BasicTestApp/ComponentRefComponent.cshtml |  4 +---
 .../BasicTestApp/ElementRefComponent.cshtml   |  3 +--
 .../BasicTestApp/FocusEventComponent.cshtml   |  1 -
 .../KeyPressEventComponent.cshtml             |  2 +-
 .../BasicTestApp/MessageComponent.cshtml      |  3 +--
 .../BasicTestApp/MouseEventComponent.cshtml   |  3 ---
 .../PassThroughContentComponent.cshtml        |  4 +---
 .../PropertiesChangedHandlerChild.cshtml      |  3 +--
 .../BasicTestApp/RenderFragmentToggler.cshtml |  3 +--
 216 files changed, 498 insertions(+), 359 deletions(-)

diff --git a/samples/StandaloneApp/_ViewImports.cshtml b/samples/StandaloneApp/_ViewImports.cshtml
index d5b719f8e7..ebe4291911 100644
--- a/samples/StandaloneApp/_ViewImports.cshtml
+++ b/samples/StandaloneApp/_ViewImports.cshtml
@@ -1,6 +1,4 @@
 @using System.Net.Http
-@using Microsoft.AspNetCore.Blazor
-@using Microsoft.AspNetCore.Blazor.Components
 @using Microsoft.AspNetCore.Blazor.Layouts
 @using Microsoft.AspNetCore.Blazor.Routing
 @using StandaloneApp
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorImportProjectFeature.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorImportProjectFeature.cs
index 4259df00c4..5a3b700ed5 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorImportProjectFeature.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorImportProjectFeature.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
+using Microsoft.AspNetCore.Blazor.Shared;
 using Microsoft.AspNetCore.Razor.Language;
 
 namespace Microsoft.AspNetCore.Blazor.Razor
@@ -17,12 +18,14 @@ namespace Microsoft.AspNetCore.Blazor.Razor
         private static readonly char[] PathSeparators = new char[]{ '/', '\\' };
 
         // Using explicit newlines here to avoid fooling our baseline tests
-        private const string DefaultUsingImportContent =
+        private readonly static string DefaultUsingImportContent =
             "\r\n" +
             "@using System\r\n" +
             "@using System.Collections.Generic\r\n" +
             "@using System.Linq\r\n" +
-            "@using System.Threading.Tasks\r\n";
+            "@using System.Threading.Tasks\r\n" +
+            "@using " + BlazorApi.RenderFragment.Namespace + "\r\n" + // Microsoft.AspNetCore.Blazor
+            "@using " + BlazorApi.BlazorComponent.Namespace + "\r\n"; // Microsoft.AspNetCore.Blazor.Components
 
         public RazorProjectEngine ProjectEngine { get; set; }
 
diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/_ViewImports.cshtml b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/_ViewImports.cshtml
index d62e1b903f..3f34b12e5e 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/_ViewImports.cshtml
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/_ViewImports.cshtml
@@ -1,6 +1,4 @@
 @using System.Net.Http
-@using Microsoft.AspNetCore.Blazor
-@using Microsoft.AspNetCore.Blazor.Components
 @using Microsoft.AspNetCore.Blazor.Layouts
 @using Microsoft.AspNetCore.Blazor.Routing
 @using BlazorHosted_CSharp.Client
diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone-CSharp/_ViewImports.cshtml b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone-CSharp/_ViewImports.cshtml
index be56987d64..10f9381e1a 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone-CSharp/_ViewImports.cshtml
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone-CSharp/_ViewImports.cshtml
@@ -1,6 +1,4 @@
 @using System.Net.Http
-@using Microsoft.AspNetCore.Blazor
-@using Microsoft.AspNetCore.Blazor.Components
 @using Microsoft.AspNetCore.Blazor.Layouts
 @using Microsoft.AspNetCore.Blazor.Routing
 @using BlazorStandalone_CSharp
diff --git a/src/shared/BlazorApi.cs b/src/shared/BlazorApi.cs
index a033baad9b..d66402b110 100644
--- a/src/shared/BlazorApi.cs
+++ b/src/shared/BlazorApi.cs
@@ -11,7 +11,8 @@ namespace Microsoft.AspNetCore.Blazor.Shared
 
         public static class BlazorComponent
         {
-            public static readonly string FullTypeName = "Microsoft.AspNetCore.Blazor.Components.BlazorComponent";
+            public static readonly string Namespace = "Microsoft.AspNetCore.Blazor.Components";
+            public static readonly string FullTypeName = Namespace + ".BlazorComponent";
 
             public static readonly string BuildRenderTree = nameof(BuildRenderTree);
         }
@@ -40,7 +41,8 @@ namespace Microsoft.AspNetCore.Blazor.Shared
 
         public static class RenderFragment
         {
-            public static readonly string FullTypeName = "Microsoft.AspNetCore.Blazor.RenderFragment";
+            public static readonly string Namespace = "Microsoft.AspNetCore.Blazor";
+            public static readonly string FullTypeName = Namespace + ".RenderFragment";
         }
         
         public static class RenderTreeBuilder
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/ComponentRenderingRazorIntegrationTest.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/ComponentRenderingRazorIntegrationTest.cs
index c72284153b..e5e699ab2e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/ComponentRenderingRazorIntegrationTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/ComponentRenderingRazorIntegrationTest.cs
@@ -213,7 +213,6 @@ namespace Test
 
             var component = CompileToComponent($@"
 @addTagHelper *, TestAssembly
-@using Microsoft.AspNetCore.Blazor
 <MyComponent OnClick=""{expression}""/>
 
 @functions {{
@@ -261,7 +260,6 @@ namespace Test
 
             var component = CompileToComponent(@"
 @addTagHelper *, TestAssembly
-@using Microsoft.AspNetCore.Blazor
 <MyComponent OnClick=""@Increment""/>
 
 @functions {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/DeclarationRazorIntegrationTest.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/DeclarationRazorIntegrationTest.cs
index e2d29f2e5b..8357843e3a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/DeclarationRazorIntegrationTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/DeclarationRazorIntegrationTest.cs
@@ -125,6 +125,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/DesignTimeCodeGenerationTest.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/DesignTimeCodeGenerationTest.cs
index 866eed3c2a..c4b2ab8864 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/DesignTimeCodeGenerationTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/DesignTimeCodeGenerationTest.cs
@@ -162,7 +162,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @addTagHelper *, TestAssembly
-@using Microsoft.AspNetCore.Blazor
 <MyComponent OnClick=""@Increment""/>
 
 @functions {
@@ -232,7 +231,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@(x => { })"" />");
 
             // Assert
@@ -248,7 +246,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     void OnClick(UIMouseEventArgs e) {
@@ -269,7 +266,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     Task OnClick() 
@@ -292,7 +288,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     Task OnClick(UIMouseEventArgs e) 
@@ -315,7 +310,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""async (e) => await Task.Delay(10)"" />
 ");
 
@@ -333,7 +327,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""async (e) => await Task.Delay(10)"" />
 ");
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/RenderingRazorIntegrationTest.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/RenderingRazorIntegrationTest.cs
index a5c69ce443..9dea727fa2 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/RenderingRazorIntegrationTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/RenderingRazorIntegrationTest.cs
@@ -494,7 +494,6 @@ namespace Microsoft.AspNetCore.Blazor.Build.Test
         {
             // Arrange
             var component = CompileToComponent(@"
-@using Microsoft.AspNetCore.Blazor
 <button onclick=""@OnClick"" />
 @functions {
     public void OnClick(UIMouseEventArgs e) { Clicked = true; }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/RuntimeCodeGenerationTest.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/RuntimeCodeGenerationTest.cs
index e81dc3cc1a..6f0229ce52 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/RuntimeCodeGenerationTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/RuntimeCodeGenerationTest.cs
@@ -187,7 +187,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @addTagHelper *, TestAssembly
-@using Microsoft.AspNetCore.Blazor
 <MyComponent OnClick=""@Increment""/>
 
 @functions {
@@ -285,7 +284,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@(() => { })"" />");
 
             // Assert
@@ -301,7 +299,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@(x => { })"" />");
 
             // Assert
@@ -317,7 +314,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     void OnClick() {
@@ -337,7 +333,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     void OnClick(UIMouseEventArgs e) {
@@ -357,7 +352,6 @@ namespace Test
 
             // Act
             var generated = CompileToCSharp(@"
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     void OnClick(UIEventArgs e) {
@@ -378,7 +372,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     Task OnClick() 
@@ -401,7 +394,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""@OnClick"" />
 @functions {
     Task OnClick(UIMouseEventArgs e) 
@@ -424,7 +416,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""async (e) => await Task.Delay(10)"" />
 ");
 
@@ -442,7 +433,6 @@ namespace Test
             // Act
             var generated = CompileToCSharp(@"
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 <input onclick=""async (e) => await Task.Delay(10)"" />
 ");
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs
index 3739c18066..c96ce34c42 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs
@@ -11,11 +11,8 @@ using System.Threading.Tasks;
 
 #line default
 #line hidden
-#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt
index d71ae28bd9..7b96939749 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -20,13 +21,11 @@ Document -
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
                 HtmlContent - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml)
                     IntermediateToken - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlContent - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlElement - (67:2,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
                             IntermediateToken -  - CSharp - "async (e) => await Task.Delay(10)"
                             IntermediateToken -  - CSharp - )
-                HtmlContent - (120:2,53 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (120:2,53 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
+                HtmlContent - (84:1,53 [2] x:\dir\subdir\Test\TestComponent.cshtml)
+                    IntermediateToken - (84:1,53 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.mappings.txt
index 820785d31f..16c0a2c77d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.mappings.txt
@@ -3,8 +3,3 @@ Source Location: (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml)
 Generated Location: (222:9,0 [28] )
 |using System.Threading.Tasks|
 
-Source Location: (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (335:14,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs
index 60f1b92f3f..514e469a4a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs
@@ -11,11 +11,8 @@ using System.Threading.Tasks;
 
 #line default
 #line hidden
-#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
@@ -32,7 +29,7 @@ using Microsoft.AspNetCore.Blazor;
             __o = Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(OnClick);
         }
         #pragma warning restore 1998
-#line 4 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     Task OnClick(UIMouseEventArgs e) 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt
index a49954583e..f1b3128c31 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -20,15 +21,13 @@ Document -
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
                 HtmlContent - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml)
                     IntermediateToken - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlContent - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlElement - (67:2,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (84:2,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (48:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-                HtmlContent - (95:2,28 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (95:2,28 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-            CSharpCode - (109:3,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (109:3,12 [91] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick(UIMouseEventArgs e) \n    {\n        return Task.CompletedTask;\n    }\n
+                HtmlContent - (59:1,28 [2] x:\dir\subdir\Test\TestComponent.cshtml)
+                    IntermediateToken - (59:1,28 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
+            CSharpCode - (73:2,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (73:2,12 [91] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick(UIMouseEventArgs e) \n    {\n        return Task.CompletedTask;\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt
index 5cba1730b8..6147abeef6 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt
@@ -3,24 +3,19 @@ Source Location: (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml)
 Generated Location: (222:9,0 [28] )
 |using System.Threading.Tasks|
 
-Source Location: (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (335:14,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
-Source Location: (84:2,17 [7] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (48:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml)
 |OnClick|
-Generated Location: (1110:31,136 [7] )
+Generated Location: (1083:28,136 [7] )
 |OnClick|
 
-Source Location: (109:3,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (73:2,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     Task OnClick(UIMouseEventArgs e) 
     {
         return Task.CompletedTask;
     }
 |
-Generated Location: (1233:35,12 [91] )
+Generated Location: (1206:32,12 [91] )
 |
     Task OnClick(UIMouseEventArgs e) 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs
index 3739c18066..c96ce34c42 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs
@@ -11,11 +11,8 @@ using System.Threading.Tasks;
 
 #line default
 #line hidden
-#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt
index d71ae28bd9..7b96939749 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -20,13 +21,11 @@ Document -
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
                 HtmlContent - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml)
                     IntermediateToken - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlContent - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlElement - (67:2,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
                             IntermediateToken -  - CSharp - "async (e) => await Task.Delay(10)"
                             IntermediateToken -  - CSharp - )
-                HtmlContent - (120:2,53 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (120:2,53 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
+                HtmlContent - (84:1,53 [2] x:\dir\subdir\Test\TestComponent.cshtml)
+                    IntermediateToken - (84:1,53 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.mappings.txt
index 820785d31f..16c0a2c77d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.mappings.txt
@@ -3,8 +3,3 @@ Source Location: (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml)
 Generated Location: (222:9,0 [28] )
 |using System.Threading.Tasks|
 
-Source Location: (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (335:14,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs
index 09379deb4b..f422d1bab3 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs
@@ -11,11 +11,8 @@ using System.Threading.Tasks;
 
 #line default
 #line hidden
-#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
@@ -32,7 +29,7 @@ using Microsoft.AspNetCore.Blazor;
             __o = Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(OnClick);
         }
         #pragma warning restore 1998
-#line 4 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     Task OnClick() 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt
index e24814d774..8c7867111b 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -20,15 +21,13 @@ Document -
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
                 HtmlContent - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml)
                     IntermediateToken - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlContent - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlElement - (67:2,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (84:2,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (48:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-                HtmlContent - (95:2,28 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (95:2,28 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-            CSharpCode - (109:3,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (109:3,12 [73] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick() \n    {\n        return Task.CompletedTask;\n    }\n
+                HtmlContent - (59:1,28 [2] x:\dir\subdir\Test\TestComponent.cshtml)
+                    IntermediateToken - (59:1,28 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
+            CSharpCode - (73:2,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (73:2,12 [73] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick() \n    {\n        return Task.CompletedTask;\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt
index 368588aae1..85802aac2e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt
@@ -3,24 +3,19 @@ Source Location: (1:0,1 [28] x:\dir\subdir\Test\TestComponent.cshtml)
 Generated Location: (222:9,0 [28] )
 |using System.Threading.Tasks|
 
-Source Location: (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (335:14,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
-Source Location: (84:2,17 [7] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (48:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml)
 |OnClick|
-Generated Location: (1110:31,136 [7] )
+Generated Location: (1083:28,136 [7] )
 |OnClick|
 
-Source Location: (109:3,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (73:2,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     Task OnClick() 
     {
         return Task.CompletedTask;
     }
 |
-Generated Location: (1233:35,12 [73] )
+Generated Location: (1206:32,12 [73] )
 |
     Task OnClick() 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs
index 541adddb5d..0aa21b325d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt
index 374e6b0c4a..ec4f382dda 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt
index 0c8b7e29ed..ffb9e32933 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (66:1,35 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (1061:28,35 [11] )
+Generated Location: (1152:30,35 [11] )
 |ParentValue|
 
 Source Location: (95:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1480:41,12 [50] )
+Generated Location: (1571:43,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs
index 189ad5c338..173e15e72c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt
index e008edca95..890d6d350e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt
index 49a988fbca..89036ba67f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (66:1,35 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (1061:28,35 [11] )
+Generated Location: (1152:30,35 [11] )
 |ParentValue|
 
 Source Location: (95:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1514:40,12 [50] )
+Generated Location: (1605:42,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs
index 8695193222..c584e9ac06 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt
index 9bfc99d3ee..3c253a9ed9 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt
index 9fdb3e059c..5e04897752 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (56:1,25 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (1051:28,25 [11] )
+Generated Location: (1142:30,25 [11] )
 |ParentValue|
 
 Source Location: (85:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1470:41,12 [50] )
+Generated Location: (1561:43,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs
index c31fcc754e..15f46bd2c3 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt
index b4eb8431c0..9788765055 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt
index b48140725c..5e0fc36580 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (56:1,25 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (1051:28,25 [11] )
+Generated Location: (1142:30,25 [11] )
 |ParentValue|
 
 Source Location: (85:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1504:40,12 [50] )
+Generated Location: (1595:42,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs
index afae644dc9..e4f76e11e3 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt
index 786b3b6b58..48992662b0 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt
index b4ed051583..2a75dd07ef 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (72:1,41 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |CurrentDate|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |CurrentDate|
 
 Source Location: (122:2,12 [77] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
-Generated Location: (1252:31,12 [77] )
+Generated Location: (1343:33,12 [77] )
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs
index e7e1935f8b..50724686ba 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt
index 0155f5289c..9f48811fde 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt
index 9322b26b70..56f322cdf0 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (72:1,41 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |ParentValue|
 
 Source Location: (101:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1234:31,12 [50] )
+Generated Location: (1325:33,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs
index 0ac730d360..e6025bc041 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt
index bc5c7d6401..12ba94f2cb 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt
index 672dbd7741..8e4542b3fb 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (49:1,18 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |ParentValue|
 
 Source Location: (78:2,12 [55] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public string ParentValue { get; set; } = "hi";
 |
-Generated Location: (1234:31,12 [55] )
+Generated Location: (1325:33,12 [55] )
 |
     public string ParentValue { get; set; } = "hi";
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs
index 0ac730d360..e6025bc041 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt
index 2ac2a86a2d..c88e7e10c4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt
index d82ed91d7a..dd81daa732 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (43:1,12 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |ParentValue|
 
 Source Location: (72:2,12 [55] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public string ParentValue { get; set; } = "hi";
 |
-Generated Location: (1234:31,12 [55] )
+Generated Location: (1325:33,12 [55] )
 |
     public string ParentValue { get; set; } = "hi";
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs
index 355a9ff363..41e94e9658 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt
index a8f2fe3ee6..8e2a97246e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt
index 5f9afc728e..60e107a920 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (61:1,30 [7] x:\dir\subdir\Test\TestComponent.cshtml)
 |Enabled|
-Generated Location: (973:26,78 [7] )
+Generated Location: (1064:28,78 [7] )
 |Enabled|
 
 Source Location: (86:2,12 [41] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public bool Enabled { get; set; }
 |
-Generated Location: (1222:31,12 [41] )
+Generated Location: (1313:33,12 [41] )
 |
     public bool Enabled { get; set; }
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs
index aa4edef5ac..91bbca6197 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt
index d4fa6b1259..1a3a505408 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt
index 3e335d13a5..55133774cb 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt
@@ -1,16 +1,16 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (57:1,26 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |CurrentDate|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |CurrentDate|
 
 Source Location: (85:1,54 [6] x:\dir\subdir\Test\TestComponent.cshtml)
 |Format|
-Generated Location: (986:26,91 [6] )
+Generated Location: (1077:28,91 [6] )
 |Format|
 
 Source Location: (108:2,12 [135] x:\dir\subdir\Test\TestComponent.cshtml)
@@ -19,7 +19,7 @@ Source Location: (108:2,12 [135] x:\dir\subdir\Test\TestComponent.cshtml)
 
     public string Format { get; set; } = "MM/dd/yyyy";
 |
-Generated Location: (1250:31,12 [135] )
+Generated Location: (1341:33,12 [135] )
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs
index 2626250007..7586731f4a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt
index 3927b7f5ec..fa9946dc2e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt
index 20c834a3ed..ed4f7c0943 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (57:1,26 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |CurrentDate|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |CurrentDate|
 
 Source Location: (111:2,12 [77] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
-Generated Location: (1262:31,12 [77] )
+Generated Location: (1353:33,12 [77] )
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs
index e7e1935f8b..50724686ba 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt
index 62c182c182..2859cadaa5 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt
index ad38adaca5..e8e97b1b85 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (57:1,26 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |ParentValue|
 
 Source Location: (86:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1234:31,12 [50] )
+Generated Location: (1325:33,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs
index e7e1935f8b..50724686ba 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt
index 8a24a9c2ce..3cea43d68f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt
index 0f55a618a1..c8e9ee0a1f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (45:1,14 [11] x:\dir\subdir\Test\TestComponent.cshtml)
 |ParentValue|
-Generated Location: (973:26,78 [11] )
+Generated Location: (1064:28,78 [11] )
 |ParentValue|
 
 Source Location: (74:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1234:31,12 [50] )
+Generated Location: (1325:33,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs
index 6273a0b143..d8aec62c7a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt
index f7a552bd8d..ac6736fae4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.mappings.txt
index 668ac0d88d..75b2c90a92 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.mappings.txt
@@ -1,5 +1,5 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs
index 03ab7f3b2f..a6667c6235 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs
@@ -7,11 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
-#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
@@ -30,7 +27,7 @@ global::System.Object __typeHelper = "*, TestAssembly";
         {
             base.BuildRenderTree(builder);
             __o = new System.Action<Microsoft.AspNetCore.Blazor.UIEventArgs>(
-#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
                        Increment
 
 #line default
@@ -41,7 +38,7 @@ global::System.Object __typeHelper = "*, TestAssembly";
             ));
         }
         #pragma warning restore 1998
-#line 5 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 4 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     private int counter;
     private void Increment(UIEventArgs e) {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt
index 7e38df2f75..0d8159d21a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -21,13 +22,11 @@ Document -
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
                 HtmlContent - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml)
                     IntermediateToken - (29:0,29 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlContent - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (65:1,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                ComponentExtensionNode - (67:2,0 [35] x:\dir\subdir\Test\TestComponent.cshtml) - MyComponent - Test.MyComponent
-                    ComponentAttributeExtensionNode - (89:2,22 [10] x:\dir\subdir\Test\TestComponent.cshtml) - OnClick - OnClick
-                        CSharpExpression - (90:2,23 [9] x:\dir\subdir\Test\TestComponent.cshtml)
-                            IntermediateToken - (90:2,23 [9] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - Increment
-                HtmlContent - (102:2,35 [4] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (102:2,35 [4] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n\n
-            CSharpCode - (118:4,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (118:4,12 [100] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    private int counter;\n    private void Increment(UIEventArgs e) {\n        counter++;\n    }\n
+                ComponentExtensionNode - (31:1,0 [35] x:\dir\subdir\Test\TestComponent.cshtml) - MyComponent - Test.MyComponent
+                    ComponentAttributeExtensionNode - (53:1,22 [10] x:\dir\subdir\Test\TestComponent.cshtml) - OnClick - OnClick
+                        CSharpExpression - (54:1,23 [9] x:\dir\subdir\Test\TestComponent.cshtml)
+                            IntermediateToken - (54:1,23 [9] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - Increment
+                HtmlContent - (66:1,35 [4] x:\dir\subdir\Test\TestComponent.cshtml)
+                    IntermediateToken - (66:1,35 [4] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n\n
+            CSharpCode - (82:3,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (82:3,12 [100] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    private int counter;\n    private void Increment(UIEventArgs e) {\n        counter++;\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt
index 9f89cb32a5..a7d236df48 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt
@@ -1,26 +1,21 @@
-Source Location: (32:1,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (257:10,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (586:19,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
-Source Location: (90:2,23 [9] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (54:1,23 [9] x:\dir\subdir\Test\TestComponent.cshtml)
 |Increment|
-Generated Location: (1166:33,23 [9] )
+Generated Location: (1139:30,23 [9] )
 |Increment|
 
-Source Location: (118:4,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (82:3,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     private int counter;
     private void Increment(UIEventArgs e) {
         counter++;
     }
 |
-Generated Location: (1483:44,12 [100] )
+Generated Location: (1456:41,12 [100] )
 |
     private int counter;
     private void Increment(UIEventArgs e) {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs
index 596e5309c1..46c0a9d442 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt
index 0f5ebc830b..8b15ed3576 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.mappings.txt
index 9a791ad2fc..3795536c85 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.mappings.txt
@@ -1,10 +1,10 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (62:1,31 [13] x:\dir\subdir\Test\TestComponent.cshtml)
 |42.ToString()|
-Generated Location: (997:28,31 [13] )
+Generated Location: (1088:30,31 [13] )
 |42.ToString()|
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs
index 14065b34e1..665a271300 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt
index 5660bff4e5..9ab3373d6f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt
index 7533a3b604..f938240b14 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt
@@ -1,11 +1,11 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (55:1,24 [23] x:\dir\subdir\Test\TestComponent.cshtml)
 |(e) => { Increment(); }|
-Generated Location: (1049:28,24 [23] )
+Generated Location: (1140:30,24 [23] )
 |(e) => { Increment(); }|
 
 Source Location: (98:3,12 [87] x:\dir\subdir\Test\TestComponent.cshtml)
@@ -15,7 +15,7 @@ Source Location: (98:3,12 [87] x:\dir\subdir\Test\TestComponent.cshtml)
         counter++;
     }
 |
-Generated Location: (1380:39,12 [87] )
+Generated Location: (1471:41,12 [87] )
 |
     private int counter;
     private void Increment() {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs
index 2593087929..0ee60d4afc 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt
index 7e7eb3757f..258374b198 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.mappings.txt
index 8a335fba9a..d4d374fbbe 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.mappings.txt
@@ -1,10 +1,10 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (86:1,55 [13] x:\dir\subdir\Test\TestComponent.cshtml)
 |43.ToString()|
-Generated Location: (1021:28,55 [13] )
+Generated Location: (1112:30,55 [13] )
 |43.ToString()|
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs
index b3904b88a1..ff8f313ae3 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt
index bb5b3733db..5eb412c5e6 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.mappings.txt
index 124512fd1d..a8fd859264 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.mappings.txt
@@ -1,20 +1,20 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (63:2,17 [3] x:\dir\subdir\Test\TestComponent.cshtml)
 |123|
-Generated Location: (983:28,17 [3] )
+Generated Location: (1074:30,17 [3] )
 |123|
 
 Source Location: (87:3,18 [4] x:\dir\subdir\Test\TestComponent.cshtml)
 |true|
-Generated Location: (1123:35,18 [4] )
+Generated Location: (1214:37,18 [4] )
 |true|
 
 Source Location: (146:5,20 [14] x:\dir\subdir\Test\TestComponent.cshtml)
 |new SomeType()|
-Generated Location: (1266:42,20 [14] )
+Generated Location: (1357:44,20 [14] )
 |new SomeType()|
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs
index 6a1400dc7e..054893de86 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt
index 2d161210fa..d472c3cd92 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt
index 03d7116ba5..61b26413c6 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt
@@ -1,11 +1,11 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (70:1,39 [10] x:\dir\subdir\Test\TestComponent.cshtml)
 |myInstance|
-Generated Location: (1132:30,39 [10] )
+Generated Location: (1223:32,39 [10] )
 |myInstance|
 
 Source Location: (119:3,12 [133] x:\dir\subdir\Test\TestComponent.cshtml)
@@ -14,7 +14,7 @@ Source Location: (119:3,12 [133] x:\dir\subdir\Test\TestComponent.cshtml)
 
     void DoSomething() { myInstance.GetHashCode(); } // Avoid 'assigned but not used' warning
 |
-Generated Location: (1316:37,12 [133] )
+Generated Location: (1407:39,12 [133] )
 |
     Test.MyComponent myInstance;
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs
index 2cc4691c74..c29205053a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt
index 22dbc6fc9a..bdf90a1f8c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt
index 2dcdca867e..cd0b6cb8cb 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt
@@ -1,6 +1,6 @@
 Source Location: (36:0,36 [6] x:\dir\subdir\Test\TestComponent.cshtml)
 |myElem|
-Generated Location: (865:23,36 [6] )
+Generated Location: (956:25,36 [6] )
 |myElem|
 
 Source Location: (95:2,12 [147] x:\dir\subdir\Test\TestComponent.cshtml)
@@ -9,7 +9,7 @@ Source Location: (95:2,12 [147] x:\dir\subdir\Test\TestComponent.cshtml)
 
     void DoSomething() { myElem.GetHashCode(); } // Avoid 'assigned but not used' warning
 |
-Generated Location: (1067:30,12 [147] )
+Generated Location: (1158:32,12 [147] )
 |
     Microsoft.AspNetCore.Blazor.ElementRef myElem;
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.codegen.cs
index 09459cda62..be7a9f6416 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.codegen.cs
@@ -7,11 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
-#line 1 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
@@ -28,7 +25,7 @@ using Microsoft.AspNetCore.Blazor;
             __o = Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(OnClick);
         }
         #pragma warning restore 1998
-#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     void OnClick(UIMouseEventArgs e) {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.ir.txt
index 3fb0587dbb..1637168f24 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -18,15 +19,13 @@ Document -
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlContent - (34:0,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (34:0,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlElement - (36:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (53:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (17:0,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-                HtmlContent - (64:1,28 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (64:1,28 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-            CSharpCode - (78:2,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (78:2,12 [49] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick(UIMouseEventArgs e) {\n    }\n
+                HtmlContent - (28:0,28 [2] x:\dir\subdir\Test\TestComponent.cshtml)
+                    IntermediateToken - (28:0,28 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
+            CSharpCode - (42:1,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (42:1,12 [49] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick(UIMouseEventArgs e) {\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.mappings.txt
index b8adba7e60..270d96f530 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithDelegate/TestComponent.mappings.txt
@@ -1,19 +1,14 @@
-Source Location: (1:0,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (257:10,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
-Source Location: (53:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (17:0,17 [7] x:\dir\subdir\Test\TestComponent.cshtml)
 |OnClick|
-Generated Location: (1032:27,136 [7] )
+Generated Location: (1005:24,136 [7] )
 |OnClick|
 
-Source Location: (78:2,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (42:1,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     void OnClick(UIMouseEventArgs e) {
     }
 |
-Generated Location: (1155:31,12 [49] )
+Generated Location: (1128:28,12 [49] )
 |
     void OnClick(UIMouseEventArgs e) {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.codegen.cs
index 68c00a0781..53a0d89f0d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.codegen.cs
@@ -7,11 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
-#line 1 "x:\dir\subdir\Test\TestComponent.cshtml"
-using Microsoft.AspNetCore.Blazor;
-
-#line default
-#line hidden
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.ir.txt
index ecb42a4b1e..c67fddb05a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.ir.txt
@@ -4,7 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [33] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
@@ -18,11 +19,9 @@ Document -
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlContent - (34:0,34 [2] x:\dir\subdir\Test\TestComponent.cshtml)
-                    IntermediateToken - (34:0,34 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
-                HtmlElement - (36:1,0 [31] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [11] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [31] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [11] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (54:1,18 [8] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - x => { }
+                            IntermediateToken - (18:0,18 [8] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - x => { }
                             IntermediateToken -  - CSharp - )
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.mappings.txt
index 12a1470dce..2da1e51570 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithLambdaDelegate/TestComponent.mappings.txt
@@ -1,10 +1,5 @@
-Source Location: (1:0,1 [33] x:\dir\subdir\Test\TestComponent.cshtml)
-|using Microsoft.AspNetCore.Blazor|
-Generated Location: (257:10,0 [33] )
-|using Microsoft.AspNetCore.Blazor|
-
-Source Location: (54:1,18 [8] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (18:0,18 [8] x:\dir\subdir\Test\TestComponent.cshtml)
 |x => { }|
-Generated Location: (1032:27,136 [8] )
+Generated Location: (1005:24,136 [8] )
 |x => { }|
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs
index fa87ea1b7e..72b26c57ee 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt
index 717d4a2de6..c6ee0ccb43 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs
index c767bbdf71..867ea50461 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 219
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.ir.txt
index 9dbdacd9a2..0a508ca3ba 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [17] ) - System.Linq
         UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [33] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [44] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             DesignTimeDirective - 
                 DirectiveToken - (14:0,14 [32] ) - "*, Microsoft.AspNetCore.Blazor"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt
index e06cef700c..a46f6f54c4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/DesignTimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt
@@ -1,18 +1,18 @@
 Source Location: (14:0,14 [15] x:\dir\subdir\Test\TestComponent.cshtml)
 |*, TestAssembly|
-Generated Location: (468:14,38 [15] )
+Generated Location: (559:16,38 [15] )
 |*, TestAssembly|
 
 Source Location: (48:1,17 [1] x:\dir\subdir\Test\TestComponent.cshtml)
 |y|
-Generated Location: (1043:28,17 [1] )
+Generated Location: (1134:30,17 [1] )
 |y|
 
 Source Location: (67:2,12 [24] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     string y = null;
 |
-Generated Location: (1466:40,12 [24] )
+Generated Location: (1557:42,12 [24] )
 |
     string y = null;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs
index 053f80eda4..1a0cd523cd 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt
index 9a1d9b8a56..8aaeae9e06 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_Lambda/TestComponent.ir.txt
@@ -4,13 +4,14 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (1:0,1 [30] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (67:2,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
                             IntermediateToken -  - CSharp - "async (e) => await Task.Delay(10)"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs
index c004471a64..4d285bd29a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
@@ -19,7 +20,7 @@ namespace Test
             builder.CloseElement();
         }
         #pragma warning restore 1998
-#line 4 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     Task OnClick(UIMouseEventArgs e) 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt
index 8f7ee1abda..cc95230d3c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.ir.txt
@@ -4,16 +4,17 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (1:0,1 [30] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (67:2,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (84:2,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (48:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-            CSharpCode - (109:3,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (109:3,12 [91] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick(UIMouseEventArgs e) \n    {\n        return Task.CompletedTask;\n    }\n
+            CSharpCode - (73:2,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (73:2,12 [91] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick(UIMouseEventArgs e) \n    {\n        return Task.CompletedTask;\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt
index 81cfe60cab..20f7bd02cc 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup/TestComponent.mappings.txt
@@ -1,11 +1,11 @@
-Source Location: (109:3,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (73:2,12 [91] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     Task OnClick(UIMouseEventArgs e) 
     {
         return Task.CompletedTask;
     }
 |
-Generated Location: (922:22,12 [91] )
+Generated Location: (973:23,12 [91] )
 |
     Task OnClick(UIMouseEventArgs e) 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs
index 053f80eda4..1a0cd523cd 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt
index 9a1d9b8a56..8aaeae9e06 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_Lambda/TestComponent.ir.txt
@@ -4,13 +4,14 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (1:0,1 [30] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (67:2,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [53] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [33] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
                             IntermediateToken -  - CSharp - "async (e) => await Task.Delay(10)"
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs
index d39209f5fc..cb67da823e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
@@ -19,7 +20,7 @@ namespace Test
             builder.CloseElement();
         }
         #pragma warning restore 1998
-#line 4 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     Task OnClick() 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt
index fc2356ecc8..b161a2c927 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.ir.txt
@@ -4,16 +4,17 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (1:0,1 [30] x:\dir\subdir\Test\TestComponent.cshtml) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (67:2,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (83:2,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (31:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (47:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (84:2,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (48:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-            CSharpCode - (109:3,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (109:3,12 [73] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick() \n    {\n        return Task.CompletedTask;\n    }\n
+            CSharpCode - (73:2,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (73:2,12 [73] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    Task OnClick() \n    {\n        return Task.CompletedTask;\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt
index 1c9fba8381..bfb62f2088 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/AsyncEventHandler_OnElement_Action_MethodGroup/TestComponent.mappings.txt
@@ -1,11 +1,11 @@
-Source Location: (109:3,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (73:2,12 [73] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     Task OnClick() 
     {
         return Task.CompletedTask;
     }
 |
-Generated Location: (922:22,12 [73] )
+Generated Location: (973:23,12 [73] )
 |
     Task OnClick() 
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs
index dc848d7ae0..d767e389e4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt
index a016c61f04..cf2cad570c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt
index 96bb287009..04949b16f7 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (95:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (957:22,12 [50] )
+Generated Location: (1048:24,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs
index 1b57477b9c..406fd77f5e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt
index 67b8e2425f..3a193ed664 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt
index 52ae7a7ec8..c118a649e8 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (95:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1005:22,12 [50] )
+Generated Location: (1096:24,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs
index 61b07954a3..8e2f3055d5 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt
index 2e3c86997f..c4b16fdb5d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt
index aa682e3a59..9b93868d29 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithMatchingProperties/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (85:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (960:22,12 [50] )
+Generated Location: (1051:24,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs
index 416482e68e..983f6cfaed 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt
index be033416f6..a8bade26c3 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt
index b58c33dd1f..6f0ab5afab 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToComponent_SpecifiesValue_WithoutMatchingProperties/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (85:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1008:22,12 [50] )
+Generated Location: (1099:24,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs
index 7220fcce15..d1b7faa6a1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt
index dfd67b6c37..af02651ab8 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt
index 1d4616f30d..8f476a0225 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WithFormat_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (122:2,12 [77] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
-Generated Location: (1063:23,12 [77] )
+Generated Location: (1154:25,12 [77] )
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs
index d7b9ed8230..885d2dcf8f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt
index 9ea4c0194c..c1d01da140 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt
index 9942b57278..627ba0b64f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementFallback_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (101:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1045:23,12 [50] )
+Generated Location: (1136:25,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs
index 0cc3f8784b..d0782b1bde 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt
index ae9aece007..2fc5e7b9cf 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt
index e52ac5fe52..bddded307f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElementWithSuffix_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (78:2,12 [55] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public string ParentValue { get; set; } = "hi";
 |
-Generated Location: (990:22,12 [55] )
+Generated Location: (1081:24,12 [55] )
 |
     public string ParentValue { get; set; } = "hi";
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs
index 0cc3f8784b..d0782b1bde 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt
index 02c0b1cf5b..b3c72930f4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt
index c71520ed4e..172b264df9 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BindToElement_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (72:2,12 [55] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public string ParentValue { get; set; } = "hi";
 |
-Generated Location: (990:22,12 [55] )
+Generated Location: (1081:24,12 [55] )
 |
     public string ParentValue { get; set; } = "hi";
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs
index f0b1ac8d65..ee8d1e1f2d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt
index d56f6b954b..711d2b344e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt
index b8713640dc..9a05006160 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputCheckbox_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (86:2,12 [41] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public bool Enabled { get; set; }
 |
-Generated Location: (1039:23,12 [41] )
+Generated Location: (1130:25,12 [41] )
 |
     public bool Enabled { get; set; }
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs
index ca0b1cdc50..15a9bcb337 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt
index c14b5f4eda..9430a37313 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt
index 60d0deced4..a6242c7de2 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes/TestComponent.mappings.txt
@@ -4,7 +4,7 @@ Source Location: (108:2,12 [135] x:\dir\subdir\Test\TestComponent.cshtml)
 
     public string Format { get; set; } = "MM/dd/yyyy";
 |
-Generated Location: (1061:23,12 [135] )
+Generated Location: (1152:25,12 [135] )
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs
index bfc45fc0fb..5fc1e9c92a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt
index 28c38a6dc3..9eac808888 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt
index 9f021ae0f5..0bd6108dfd 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WithFormat_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (111:2,12 [77] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
-Generated Location: (1073:23,12 [77] )
+Generated Location: (1164:25,12 [77] )
 |
     public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs
index d7b9ed8230..885d2dcf8f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt
index 2a295fcfb4..45ebca4e3d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt
index 262f4359cb..638cb8dee7 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputText_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (86:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (1045:23,12 [50] )
+Generated Location: (1136:25,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs
index 82b4212810..4879f6c3bc 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt
index deba97f809..bfcc984a29 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt
index 22cc5aeea7..ccec562e6e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/BuiltIn_BindToInputWithoutType_WritesAttributes/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (74:2,12 [50] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     public int ParentValue { get; set; } = 42;
 |
-Generated Location: (991:22,12 [50] )
+Generated Location: (1082:24,12 [50] )
 |
     public int ParentValue { get; set; } = 42;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.codegen.cs
index e3d8c5b0a4..66cb6cb753 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.ir.txt
index d95599c058..1defa12678 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_Simple/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs
index 56aac77648..f05179d564 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt
index 1e2ef4ef99..bb2aa71df1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithChildContent/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs
index c4c2ef423e..82da3d7c56 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
@@ -19,7 +20,7 @@ namespace Test
             builder.CloseComponent();
         }
         #pragma warning restore 1998
-#line 5 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 4 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     private int counter;
     private void Increment(UIEventArgs e) {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt
index fc76d98a8e..9eb35b74b0 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.ir.txt
@@ -4,14 +4,15 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
-        UsingDirective - (32:1,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                ComponentExtensionNode - (67:2,0 [35] x:\dir\subdir\Test\TestComponent.cshtml) - MyComponent - Test.MyComponent
-                    ComponentAttributeExtensionNode - (89:2,22 [10] x:\dir\subdir\Test\TestComponent.cshtml) - OnClick - OnClick
-                        CSharpExpression - (90:2,23 [9] x:\dir\subdir\Test\TestComponent.cshtml)
-                            IntermediateToken - (90:2,23 [9] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - Increment
-            CSharpCode - (118:4,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (118:4,12 [100] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    private int counter;\n    private void Increment(UIEventArgs e) {\n        counter++;\n    }\n
+                ComponentExtensionNode - (31:1,0 [35] x:\dir\subdir\Test\TestComponent.cshtml) - MyComponent - Test.MyComponent
+                    ComponentAttributeExtensionNode - (53:1,22 [10] x:\dir\subdir\Test\TestComponent.cshtml) - OnClick - OnClick
+                        CSharpExpression - (54:1,23 [9] x:\dir\subdir\Test\TestComponent.cshtml)
+                            IntermediateToken - (54:1,23 [9] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - Increment
+            CSharpCode - (82:3,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (82:3,12 [100] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    private int counter;\n    private void Increment(UIEventArgs e) {\n        counter++;\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt
index 6aee30c742..78c83fa5c1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitEventHandler/TestComponent.mappings.txt
@@ -1,11 +1,11 @@
-Source Location: (118:4,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (82:3,12 [100] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     private int counter;
     private void Increment(UIEventArgs e) {
         counter++;
     }
 |
-Generated Location: (878:22,12 [100] )
+Generated Location: (929:23,12 [100] )
 |
     private int counter;
     private void Increment(UIEventArgs e) {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs
index 051c659fb9..723f0b72e9 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt
index 8301b6c539..5a54d6f7b9 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithExplicitStringParameter/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs
index 48eaf983fe..1b4a7522e7 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt
index 8e50ea3635..0d85b52d4a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt
index 33cce7d1b5..964cbb8d69 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithLambdaEventHandler/TestComponent.mappings.txt
@@ -5,7 +5,7 @@ Source Location: (96:3,12 [87] x:\dir\subdir\Test\TestComponent.cshtml)
         counter++;
     }
 |
-Generated Location: (850:21,12 [87] )
+Generated Location: (941:23,12 [87] )
 |
     private int counter;
     private void Increment() {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs
index 58e678ed37..7b19904f5b 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt
index 02f247caef..b74005e41c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithNonPropertyAttributes/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.codegen.cs
index eb0cbe7912..62ccc81610 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     [Microsoft.AspNetCore.Blazor.Components.RouteAttribute("/MyPage")]
     [Microsoft.AspNetCore.Blazor.Components.RouteAttribute("/AnotherRoute/{id}")]
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.ir.txt
index a731e5a93c..be5e5120fa 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithPageDirective/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         RouteAttributeExtensionNode -  - /MyPage
         RouteAttributeExtensionNode -  - /AnotherRoute/{id}
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs
index a66a316478..5baa09463a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt
index acc61c14ad..c7fe2809b9 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ChildComponent_WithParameters/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs
index ac77c3a3dd..ff75de6c6a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt
index dbf7125b85..7c5be1da8c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt
index f1d4075e59..c57c9d55d1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef/TestComponent.mappings.txt
@@ -1,13 +1,13 @@
 Source Location: (70:1,39 [10] x:\dir\subdir\Test\TestComponent.cshtml)
 |myInstance|
-Generated Location: (849:20,39 [10] )
+Generated Location: (940:22,39 [10] )
 |myInstance|
 
 Source Location: (119:3,12 [44] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     private Test.MyComponent myInstance;
 |
-Generated Location: (1103:30,12 [44] )
+Generated Location: (1194:32,12 [44] )
 |
     private Test.MyComponent myInstance;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.codegen.cs
index 4a345b023f..96e1113792 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.ir.txt
index 75fb30675b..56e7dd13bf 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.mappings.txt
index e16444deee..205321b96c 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Component_WithRef_WithChildContent/TestComponent.mappings.txt
@@ -1,13 +1,13 @@
 Source Location: (49:1,18 [10] x:\dir\subdir\Test\TestComponent.cshtml)
 |myInstance|
-Generated Location: (1160:28,18 [10] )
+Generated Location: (1251:30,18 [10] )
 |myInstance|
 
 Source Location: (143:5,12 [44] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     private Test.MyComponent myInstance;
 |
-Generated Location: (1414:38,12 [44] )
+Generated Location: (1505:40,12 [44] )
 |
     private Test.MyComponent myInstance;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs
index 6bbcfb72a4..d1b4f6ea12 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt
index 26671a3284..0a10abd84a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt
index 6010c4108f..3b8dc820bf 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Element_WithRef/TestComponent.mappings.txt
@@ -1,13 +1,13 @@
 Source Location: (36:0,36 [6] x:\dir\subdir\Test\TestComponent.cshtml)
 |myElem|
-Generated Location: (840:20,36 [6] )
+Generated Location: (931:22,36 [6] )
 |myElem|
 
 Source Location: (95:2,12 [62] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     private Microsoft.AspNetCore.Blazor.ElementRef myElem;
 |
-Generated Location: (1115:31,12 [62] )
+Generated Location: (1206:33,12 [62] )
 |
     private Microsoft.AspNetCore.Blazor.ElementRef myElem;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.codegen.cs
index 8acb8b7f64..0d7fa6e4b1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
@@ -19,7 +20,7 @@ namespace Test
             builder.CloseElement();
         }
         #pragma warning restore 1998
-#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     void OnClick(UIEventArgs e) {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.ir.txt
index 5719e18c51..0198f3fdae 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.ir.txt
@@ -4,16 +4,17 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (36:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (53:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (17:0,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-            CSharpCode - (78:2,12 [44] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (78:2,12 [44] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick(UIEventArgs e) {\n    }\n
+            CSharpCode - (42:1,12 [44] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (42:1,12 [44] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick(UIEventArgs e) {\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.mappings.txt
index 34e41fe869..f047b701c4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup/TestComponent.mappings.txt
@@ -1,9 +1,9 @@
-Source Location: (78:2,12 [44] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (42:1,12 [44] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     void OnClick(UIEventArgs e) {
     }
 |
-Generated Location: (922:22,12 [44] )
+Generated Location: (973:23,12 [44] )
 |
     void OnClick(UIEventArgs e) {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.codegen.cs
index 5804c79b89..baa6ced1a2 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.ir.txt
index d3cb9a2a5f..ffdd649aec 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsLambdaDelegate/TestComponent.ir.txt
@@ -4,14 +4,15 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (36:1,0 [31] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [11] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [31] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [11] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (54:1,18 [8] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - x => { }
+                            IntermediateToken - (18:0,18 [8] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - x => { }
                             IntermediateToken -  - CSharp - )
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.codegen.cs
index aa525ada20..1abcba4827 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
@@ -19,7 +20,7 @@ namespace Test
             builder.CloseElement();
         }
         #pragma warning restore 1998
-#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     void OnClick(UIMouseEventArgs e) {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.ir.txt
index 6b0ccc4585..2e944a3486 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.ir.txt
@@ -4,16 +4,17 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (36:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (53:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (17:0,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-            CSharpCode - (78:2,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (78:2,12 [49] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick(UIMouseEventArgs e) {\n    }\n
+            CSharpCode - (42:1,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (42:1,12 [49] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick(UIMouseEventArgs e) {\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.mappings.txt
index 3e17f3045e..a81c70518f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithEventArgsMethodGroup/TestComponent.mappings.txt
@@ -1,9 +1,9 @@
-Source Location: (78:2,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (42:1,12 [49] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     void OnClick(UIMouseEventArgs e) {
     }
 |
-Generated Location: (922:22,12 [49] )
+Generated Location: (973:23,12 [49] )
 |
     void OnClick(UIMouseEventArgs e) {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.codegen.cs
index 0670f8a1f0..396a1da4c2 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
@@ -19,7 +20,7 @@ namespace Test
             builder.CloseElement();
         }
         #pragma warning restore 1998
-#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
+#line 2 "x:\dir\subdir\Test\TestComponent.cshtml"
             
     void OnClick() {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.ir.txt
index e24db884d6..30f97f9db1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.ir.txt
@@ -4,16 +4,17 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (36:1,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [28] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [8] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (53:1,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
+                            IntermediateToken - (17:0,17 [7] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - OnClick
                             IntermediateToken -  - CSharp - )
-            CSharpCode - (78:2,12 [31] x:\dir\subdir\Test\TestComponent.cshtml)
-                IntermediateToken - (78:2,12 [31] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick() {\n    }\n
+            CSharpCode - (42:1,12 [31] x:\dir\subdir\Test\TestComponent.cshtml)
+                IntermediateToken - (42:1,12 [31] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    void OnClick() {\n    }\n
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.mappings.txt
index 43d7e67232..90a144dc96 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgMethodGroup/TestComponent.mappings.txt
@@ -1,9 +1,9 @@
-Source Location: (78:2,12 [31] x:\dir\subdir\Test\TestComponent.cshtml)
+Source Location: (42:1,12 [31] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     void OnClick() {
     }
 |
-Generated Location: (922:22,12 [31] )
+Generated Location: (973:23,12 [31] )
 |
     void OnClick() {
     }
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.codegen.cs
index 9e5209fdb9..93fd4cd287 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.codegen.cs
@@ -8,6 +8,7 @@ namespace Test
     using System.Linq;
     using System.Threading.Tasks;
     using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.ir.txt
index b880690058..f2581c1f49 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithNoArgsLambdaDelegate/TestComponent.ir.txt
@@ -4,14 +4,15 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
-        UsingDirective - (1:0,1 [35] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
                     IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
-                HtmlElement - (36:1,0 [32] x:\dir\subdir\Test\TestComponent.cshtml) - input
-                    HtmlAttribute - (52:1,16 [12] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
+                HtmlElement - (0:0,0 [32] x:\dir\subdir\Test\TestComponent.cshtml) - input
+                    HtmlAttribute - (16:0,16 [12] x:\dir\subdir\Test\TestComponent.cshtml) - onclick=" - "
                         CSharpExpressionAttributeValue -  - 
                             IntermediateToken -  - CSharp - Microsoft.AspNetCore.Blazor.Components.BindMethods.GetEventHandlerValue<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>(
-                            IntermediateToken - (54:1,18 [9] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - () => { }
+                            IntermediateToken - (18:0,18 [9] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - () => { }
                             IntermediateToken -  - CSharp - )
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs
index c5439dcbe5..7798dafb1d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt
index 171e131fc8..ea7f271a1a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/EventHandler_OnElement_WithString/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs
index 5459d1f2af..96cd751df4 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt
index 7f91cdc313..cd7b1a3b5d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.codegen.cs
index 32c8c14f0a..02aa50e7f1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.ir.txt
index d860c7356e..a9a56bf975 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithComponent/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.codegen.cs
index eead6674a3..2b0c5b1f1b 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.ir.txt
index df7a2e27e4..ab555f741d 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/LeadingWhiteSpace_WithDirective/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs
index 5e347a7efb..4a079da1ea 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.ir.txt
index f347ae3850..c65743b4c0 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt
index 8902d3d2cd..3e2d09ffa7 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/Regression_597/TestComponent.mappings.txt
@@ -2,7 +2,7 @@ Source Location: (67:2,12 [24] x:\dir\subdir\Test\TestComponent.cshtml)
 |
     string y = null;
 |
-Generated Location: (966:22,12 [24] )
+Generated Location: (1057:24,12 [24] )
 |
     string y = null;
 |
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.codegen.cs
index 5275cccf16..c7692c707e 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.ir.txt
index b46da6e5be..2632d07448 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/ScriptTag_WithErrorSuppressed/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs
index f3d38c31fd..b9e370ab5b 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt
index 9e4744ba27..f2dad13635 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithCSharpExpression/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.codegen.cs
index 58aa836299..ec5891600f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
         #pragma warning disable 1998
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.ir.txt
index e0bfe1b5ee..db06a72441 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithComponent/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
                 CSharpCode - 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.codegen.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.codegen.cs
index 37d8090e48..a85626313f 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.codegen.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.codegen.cs
@@ -7,6 +7,8 @@ namespace Test
     using System.Collections.Generic;
     using System.Linq;
     using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Blazor;
+    using Microsoft.AspNetCore.Blazor.Components;
     [Microsoft.AspNetCore.Blazor.Components.RouteAttribute("/my/url")]
     public class TestComponent : Microsoft.AspNetCore.Blazor.Components.BlazorComponent
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.ir.txt b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.ir.txt
index e140153564..1435b21d2b 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.ir.txt
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/TestFiles/RuntimeCodeGenerationTest/TrailingWhiteSpace_WithDirective/TestComponent.ir.txt
@@ -4,6 +4,8 @@ Document -
         UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
         UsingDirective - (53:3,1 [19] ) - System.Linq
         UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (104:5,1 [35] ) - Microsoft.AspNetCore.Blazor
+        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
         RouteAttributeExtensionNode -  - /my/url
         ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
             MethodDeclaration -  - protected override - void - BuildRenderTree
diff --git a/test/testapps/BasicTestApp/AfterRenderInteropComponent.cshtml b/test/testapps/BasicTestApp/AfterRenderInteropComponent.cshtml
index 48740eef18..ee05bc2858 100644
--- a/test/testapps/BasicTestApp/AfterRenderInteropComponent.cshtml
+++ b/test/testapps/BasicTestApp/AfterRenderInteropComponent.cshtml
@@ -1,5 +1,4 @@
-@using Microsoft.AspNetCore.Blazor
-@using Microsoft.AspNetCore.Blazor.Browser.Interop
+@using Microsoft.AspNetCore.Blazor.Browser.Interop
 
 <input ref="myInput" value="Value set during render" />
 
diff --git a/test/testapps/BasicTestApp/AsyncEventHandlerComponent.cshtml b/test/testapps/BasicTestApp/AsyncEventHandlerComponent.cshtml
index 0765ce6b3e..b35b775cd7 100644
--- a/test/testapps/BasicTestApp/AsyncEventHandlerComponent.cshtml
+++ b/test/testapps/BasicTestApp/AsyncEventHandlerComponent.cshtml
@@ -1,5 +1,4 @@
 @using System.Threading.Tasks
-@using Microsoft.AspNetCore.Blazor
 
 <div>
     <span id="state">@state</span>
diff --git a/test/testapps/BasicTestApp/BindCasesComponent.cshtml b/test/testapps/BasicTestApp/BindCasesComponent.cshtml
index 14cc7a69a5..9667bc3ed4 100644
--- a/test/testapps/BasicTestApp/BindCasesComponent.cshtml
+++ b/test/testapps/BasicTestApp/BindCasesComponent.cshtml
@@ -1,5 +1,4 @@
-@using Microsoft.AspNetCore.Blazor
-<h2>Textbox</h2>
+<h2>Textbox</h2>
 <p>
     Initially blank:
     <input id="textbox-initially-blank" bind="textboxInitiallyBlankValue" />
diff --git a/test/testapps/BasicTestApp/ComponentRefComponent.cshtml b/test/testapps/BasicTestApp/ComponentRefComponent.cshtml
index 542806de7b..ded245d99b 100644
--- a/test/testapps/BasicTestApp/ComponentRefComponent.cshtml
+++ b/test/testapps/BasicTestApp/ComponentRefComponent.cshtml
@@ -1,6 +1,4 @@
-@using Microsoft.AspNetCore.Blazor
-
-<h1>Component capture</h1>
+<h1>Component capture</h1>
 
 <p>
     This shows how a component reference may be captured as a field value using 'ref' syntax.
diff --git a/test/testapps/BasicTestApp/ElementRefComponent.cshtml b/test/testapps/BasicTestApp/ElementRefComponent.cshtml
index 6d1eebac04..dce77b9d2d 100644
--- a/test/testapps/BasicTestApp/ElementRefComponent.cshtml
+++ b/test/testapps/BasicTestApp/ElementRefComponent.cshtml
@@ -1,5 +1,4 @@
-@using Microsoft.AspNetCore.Blazor
-@using Microsoft.AspNetCore.Blazor.Browser.Interop
+@using Microsoft.AspNetCore.Blazor.Browser.Interop
 
 <h1>Element capture</h1>
 
diff --git a/test/testapps/BasicTestApp/FocusEventComponent.cshtml b/test/testapps/BasicTestApp/FocusEventComponent.cshtml
index b57d0f14ff..b6ca0f7141 100644
--- a/test/testapps/BasicTestApp/FocusEventComponent.cshtml
+++ b/test/testapps/BasicTestApp/FocusEventComponent.cshtml
@@ -1,5 +1,4 @@
 @using System.Collections.Generic
-@using Microsoft.AspNetCore.Blazor
 
 <h2>Focus and activation</h2>
 
diff --git a/test/testapps/BasicTestApp/KeyPressEventComponent.cshtml b/test/testapps/BasicTestApp/KeyPressEventComponent.cshtml
index 31b5e4dd57..4f0f12119f 100644
--- a/test/testapps/BasicTestApp/KeyPressEventComponent.cshtml
+++ b/test/testapps/BasicTestApp/KeyPressEventComponent.cshtml
@@ -1,5 +1,5 @@
 @using System.Collections.Generic
-@using Microsoft.AspNetCore.Blazor
+
 Type here: <input onkeypress=@OnKeyPressed />
 <ul>
     @foreach (var key in keysPressed)
diff --git a/test/testapps/BasicTestApp/MessageComponent.cshtml b/test/testapps/BasicTestApp/MessageComponent.cshtml
index 2e9d1910b2..75b3ecc823 100644
--- a/test/testapps/BasicTestApp/MessageComponent.cshtml
+++ b/test/testapps/BasicTestApp/MessageComponent.cshtml
@@ -1,5 +1,4 @@
-@using Microsoft.AspNetCore.Blazor.Components
-<span style="color: red" class="message">@Message</span>
+<span style="color: red" class="message">@Message</span>
 @functions {
     [Parameter] string Message { get; set; }
 }
diff --git a/test/testapps/BasicTestApp/MouseEventComponent.cshtml b/test/testapps/BasicTestApp/MouseEventComponent.cshtml
index 885d9a68ab..c87e515b58 100644
--- a/test/testapps/BasicTestApp/MouseEventComponent.cshtml
+++ b/test/testapps/BasicTestApp/MouseEventComponent.cshtml
@@ -1,7 +1,4 @@
 @using System.Collections.Generic
-@using Microsoft.AspNetCore.Blazor
-
-
 
 <div>
     <h2>Mouse position</h2>
diff --git a/test/testapps/BasicTestApp/PassThroughContentComponent.cshtml b/test/testapps/BasicTestApp/PassThroughContentComponent.cshtml
index 743f430a7c..6e9c3d941b 100644
--- a/test/testapps/BasicTestApp/PassThroughContentComponent.cshtml
+++ b/test/testapps/BasicTestApp/PassThroughContentComponent.cshtml
@@ -1,6 +1,4 @@
-@using Microsoft.AspNetCore.Blazor
-@using Microsoft.AspNetCore.Blazor.Components
-@ChildContent
+@ChildContent
 @functions {
     // Note: The lack of any whitespace or other output besides @ChildContent is important for
     // what scenarios this component is used for in E2E tests.
diff --git a/test/testapps/BasicTestApp/PropertiesChangedHandlerChild.cshtml b/test/testapps/BasicTestApp/PropertiesChangedHandlerChild.cshtml
index 6ea50e69ae..28ec61b45c 100644
--- a/test/testapps/BasicTestApp/PropertiesChangedHandlerChild.cshtml
+++ b/test/testapps/BasicTestApp/PropertiesChangedHandlerChild.cshtml
@@ -1,5 +1,4 @@
-@using Microsoft.AspNetCore.Blazor.Components
-<div class="supplied">You supplied: @SuppliedValue</div>
+<div class="supplied">You supplied: @SuppliedValue</div>
 <div class="computed">I computed: @computedValue</div>
 
 @functions {
diff --git a/test/testapps/BasicTestApp/RenderFragmentToggler.cshtml b/test/testapps/BasicTestApp/RenderFragmentToggler.cshtml
index d999a13799..6ce52d14b1 100644
--- a/test/testapps/BasicTestApp/RenderFragmentToggler.cshtml
+++ b/test/testapps/BasicTestApp/RenderFragmentToggler.cshtml
@@ -1,5 +1,4 @@
-@using Microsoft.AspNetCore.Blazor
-<div>
+<div>
     <p>Fragment will be toggled below</p>
 
     @if (showFragment)