Merge pull request dotnet/extensions#2883 from dotnet-maestro-bot/merge/release/3.1-to-master

[automated] Merge branch 'release/3.1' => 'master'\n\nCommit migrated from dotnet/extensions@302f677

Author: John Luo

src/Testing/ref/Microsoft.AspNetCore.Testing.csproj

@@ -0,0 +1,32 @@
+<!-- This file is automatically generated. -->
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.0;net46</TargetFrameworks>
+  </PropertyGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
+    <Compile Include="Microsoft.AspNetCore.Testing.netstandard2.0.cs" />
+    <Reference Include="Microsoft.Win32.Registry"  />
+    <Reference Include="System.ValueTuple"  />
+    <Reference Include="xunit.assert"  />
+    <Reference Include="xunit.extensibility.execution"  />
+  </ItemGroup>
+<ItemGroup Condition="'$(TargetFramework)' == 'net46'">
+    <Compile Include="Microsoft.AspNetCore.Testing.net46.cs" />
+    <Reference Include="Microsoft.Win32.Registry"  />
+    <Reference Include="System.ValueTuple"  />
+    <Reference Include="xunit.assert"  />
+    <Reference Include="xunit.extensibility.execution"  />
+    <Reference Include="System.Net.Http"  />
+    <Reference Include="System.Runtime.InteropServices.RuntimeInformation"  />
+    <Reference Include="System"  />
+    <Reference Include="System.Data"  />
+    <Reference Include="System.Drawing"  />
+    <Reference Include="System.Xml"  />
+    <Reference Include="System.Core"  />
+    <Reference Include="System.Runtime.Serialization"  />
+    <Reference Include="System.Xml.Linq"  />
+    <Reference Include="System.Numerics"  />
+    <Reference Include="System.IO.Compression.FileSystem"  />
+    <Reference Include="mscorlib"  />
+  </ItemGroup>
+</Project>