Porting #712 to release

src/Microsoft.AspNetCore.Hosting/WebHostBuilder.cs

@@ -254,7 +254,7 @@ namespace Microsoft.AspNetCore.Hosting
         {
             if (_startup != null)
             {
-                return _startup.ConfigureDelegate.Target.GetType().GetTypeInfo().Assembly.GetName().Name;
+                return _startup.ConfigureDelegate.GetMethodInfo().DeclaringType.GetTypeInfo().Assembly.GetName().Name;
             }
             if (_startupType != null)
             {

test/Microsoft.AspNetCore.Hosting.Tests/WebHostBuilderTests.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting.Fakes;
 using Microsoft.AspNetCore.Hosting.Internal;
 using Microsoft.AspNetCore.Hosting.Server;
@@ -477,6 +478,33 @@ namespace Microsoft.AspNetCore.Hosting
             Assert.Equal(PlatformServices.Default.Application.ApplicationBasePath, appEnv.ApplicationBasePath);
         }
 
+        [Fact]
+        public void Configure_SupportsNonStaticMethodDelegate()
+        {
+            var host = new WebHostBuilder()
+                .UseServer(new TestServer())
+                .Configure(app => { })
+                .Build();
+
+            var hostingEnv = host.Services.GetService<IHostingEnvironment>();
+            Assert.Equal("Microsoft.AspNetCore.Hosting.Tests", hostingEnv.ApplicationName);
+        }
+        
+        [Fact]
+        public void Configure_SupportsStaticMethodDelegate()
+        {
+            var host = new WebHostBuilder()
+                .UseServer(new TestServer())
+                .Configure(StaticConfigureMethod) 
+                .Build();
+
+            var hostingEnv = host.Services.GetService<IHostingEnvironment>();
+            Assert.Equal("Microsoft.AspNetCore.Hosting.Tests", hostingEnv.ApplicationName);
+        }
+
+        private static void StaticConfigureMethod(IApplicationBuilder app) 
+        { }
+
         private IWebHostBuilder CreateWebHostBuilder()
         {
             var vals = new Dictionary<string, string>