Re-enable net461 functional tests.

aspnet/Coherence-Signed#540

test/Microsoft.AspNetCore.Mvc.FunctionalTests/ErrorPageTests.cs

@@ -7,6 +7,7 @@ using System.Net.Http.Headers;
 using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc.Razor.Internal;
+using Microsoft.AspNetCore.Testing.xunit;
 using Xunit;
 
 namespace Microsoft.AspNetCore.Mvc.FunctionalTests
@@ -91,7 +92,12 @@ namespace Microsoft.AspNetCore.Mvc.FunctionalTests
             Assert.Contains(expectedCompilationContent, content);
         }
 
-        [Fact]
+        [ConditionalFact]
+        // MVC Generates portable PDBs when compiling Razor views. NET461 does not understand portable PDBs
+        // so line and file information cannot be determined. This is blocked until one of these issues are fixed:
+        // https://github.com/aspnet/Common/issues/235
+        // https://github.com/aspnet/Mvc/issues/6356
+        [FrameworkSkipCondition(RuntimeFrameworks.CLR)]
         public async Task RuntimeErrorAreListedByErrorPageMiddleware()
         {
             // Arrange

test/Microsoft.AspNetCore.Mvc.FunctionalTests/Microsoft.AspNetCore.Mvc.FunctionalTests.csproj

@@ -2,13 +2,21 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
     <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
     <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(PackageTargetFallback);portable-net451+win8</PackageTargetFallback>
 
     <DefineConstants Condition="'$(GenerateBaselines)'=='true'">$(DefineConstants);GENERATE_BASELINES</DefineConstants>
     <DefineConstants>$(DefineConstants);__RemoveThisBitTo__GENERATE_BASELINES</DefineConstants>
     <DefineConstants>$(DefineConstants);FUNCTIONAL_TESTS</DefineConstants>
+
+    <!--
+      The functional tests act as the host application for all test websites. Since the CLI copies all reference
+      assembly dependencies in websites to their corresponding bin/{config}/refs folder we need to re-calculate
+      reference assemblies for this project so there's a corresponding refs folder in our output. Without it
+      our websites deps files will fail to find their assembly referenes.
+    -->
+    <PreserveCompilationContext>true</PreserveCompilationContext>
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' != 'netcoreapp2.0' ">

test/Microsoft.AspNetCore.Mvc.FunctionalTests/WebApiCompatShimBasicTest.cs

@@ -62,6 +62,11 @@ namespace Microsoft.AspNetCore.Mvc.FunctionalTests
             {
                 typeof(JsonMediaTypeFormatter).FullName,
                 typeof(XmlMediaTypeFormatter).FullName,
+
+#if NET461
+                // We call into WebAPI and ask it to add all of its formatters. On net461 it adds this additional formatter.
+                typeof(FormUrlEncodedMediaTypeFormatter).FullName
+#endif
             };
 
             // Act