Handle corrupted default values in metadata

The native compiler handled corrupted default parameter values by substituting in default(T). It's unclear if this was intentional behavior in the compiler or not. Either way though obfuscators took advantage of this behavior and at least one prominent one will corrupt default parameter values when the value is null. Enough prominent libraries have shipped using such obfuscators that it is a blocker to upgrading. Hence we need to emulate the native compiler behavior here. This change is a bit large because I needed to update the test resources with a corrupted DLL in order to test out the changes. closes dotnet#4196
jaredpar · Aug 28, 2015 · 9ac3e8e · 9ac3e8e
1 parent 26f4f25
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diff --git a/cibuild.sh b/cibuild.sh
@@ -58,9 +58,9 @@ done
 
 restore_nuget()
 {
-    curl -O https://dotnetci.blob.core.windows.net/roslyn/nuget.3.zip
-    unzip nuget.3.zip
-    rm nuget.3.zip
+    curl -O https://dotnetci.blob.core.windows.net/roslyn/nuget.4.zip
+    unzip nuget.4.zip
+    rm nuget.4.zip
 }
 
 run_msbuild()

diff --git a/src/Compilers/CSharp/Portable/Lowering/LocalRewriter/LocalRewriter_Call.cs b/src/Compilers/CSharp/Portable/Lowering/LocalRewriter/LocalRewriter_Call.cs
@@ -874,9 +874,15 @@ private BoundExpression GetDefaultParameterValue(CSharpSyntaxNode syntax, Parame
             Debug.Assert(parameter.IsOptional);
             ConstantValue defaultConstantValue = parameter.ExplicitDefaultConstantValue;
             BoundExpression defaultValue;
-
             SourceLocation callerSourceLocation;
 
+            // For compatibility with the native compiler we treat all bad imported constant
+            // values as default(T).  
+            if (defaultConstantValue != null && defaultConstantValue.IsBad)
+            {
+                defaultConstantValue = ConstantValue.Null;
+            }
+
             if (parameter.IsCallerLineNumber && ((callerSourceLocation = GetCallerLocation(syntax, enableCallerInfo)) != null))
             {
                 int line = callerSourceLocation.SourceTree.GetDisplayLineNumber(callerSourceLocation.SourceSpan);

diff --git a/src/Compilers/CSharp/Test/CommandLine/CSharpCommandLineTest.csproj b/src/Compilers/CSharp/Test/CommandLine/CSharpCommandLineTest.csproj
@@ -85,7 +85,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
@@ -124,4 +124,4 @@
     <Import Project="..\..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
     <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/CSharp/Test/CommandLine/packages.config b/src/Compilers/CSharp/Test/CommandLine/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
 </packages>
diff --git a/src/Compilers/CSharp/Test/Emit/CSharpCompilerEmitTest.csproj b/src/Compilers/CSharp/Test/Emit/CSharpCompilerEmitTest.csproj
@@ -184,7 +184,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
@@ -212,4 +212,4 @@
     <Import Project="..\..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
     <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/CSharp/Test/Emit/CodeGen/CodeGenTests.cs b/src/Compilers/CSharp/Test/Emit/CodeGen/CodeGenTests.cs
@@ -14157,5 +14157,37 @@ .locals init (int V_0)
 
         }
 
+        [Fact]
+        [WorkItem(4196, "https://github.com/dotnet/roslyn/issues/4196")]
+        public void BadDefaultParameterValue()
+        {
+            // In this DLL there is an optional parameter which has a corrupted metadata value
+            // as the default argument.  This can happen in legitamite code when run through an
+            // obfuscator program.  For compatibility with the native compiler we need to treat
+            // the value as default(T) 
+            string source = @"
+using System;
+using BadDefaultParameterValue;
+
+class Program
+{
+    static void Main()
+    {
+        Util.M(""test"");
+    }
+}";
+
+            var testReference = AssemblyMetadata.CreateFromImage(TestResources.Repros.BadDefaultParameterValue).GetReference();
+            var compilation = CompileAndVerify(source, additionalRefs: new[] { testReference });
+            compilation.VerifyIL("Program.Main", @"
+{
+  // Code size       12 (0xc)
+  .maxstack  2
+  IL_0000:  ldstr      ""test""
+  IL_0005:  ldnull
+  IL_0006:  call       ""void BadDefaultParameterValue.Util.M(string, string)""
+  IL_000b:  ret
+}");
+        }
     }
 }
diff --git a/src/Compilers/CSharp/Test/Emit/Emit/EmitErrorTests.cs b/src/Compilers/CSharp/Test/Emit/Emit/EmitErrorTests.cs
@@ -106,7 +106,10 @@ public static void Main()
     }
 }
 ";
-            VerifyEmitDiagnostics(source2, compilation1);
+            var compilation2 = CompileAndVerify(
+                source2,
+                new[] { new CSharpCompilationReference(compilation1) },
+                verify: false);
         }
 
         [WorkItem(543039, "DevDiv")]
@@ -135,7 +138,60 @@ public static void Main()
     }
 }
 ";
-            VerifyEmitDiagnostics(source2, compilation1);
+            var compilation2 = CompileAndVerify(
+                source2,
+                new[] { new CSharpCompilationReference(compilation1) },
+                verify: false);
+        }
+
+        [WorkItem(543039, "DevDiv")]
+        [Fact]
+        public void BadDefaultArgumentInOtherAssembly_UserDefinedType()
+        {
+            string source1 = @"
+public struct S 
+{
+    public override string ToString() { return ""S::ToString""; }
+}
+
+public class A
+{
+    public static S Foo(S p = 42) { return p; }
+}
+";
+            var compilation1 = CreateCompilationWithMscorlib(source1);
+            compilation1.VerifyDiagnostics(
+                // (9,27): error CS1750: A value of type 'int' cannot be used as a default parameter because there are no standard conversions to type 'S'
+                //     public static S Foo(S p = 42) { return p; }
+                Diagnostic(ErrorCode.ERR_NoConversionForDefaultParam, "p").WithArguments("int", "S").WithLocation(9, 27));
+
+            string source2 = @"
+public class B
+{
+    public static void Main()
+    {
+        System.Console.WriteLine(A.Foo());
+    }
+}
+";
+
+            var compilation2 = CompileAndVerify(
+                source2,
+                new[] { new CSharpCompilationReference(compilation1) },
+                verify: false);
+            compilation2.VerifyIL("B.Main()", @"
+{
+  // Code size       25 (0x19)
+  .maxstack  1
+  .locals init (S V_0)
+  IL_0000:  ldloca.s   V_0
+  IL_0002:  initobj    ""S""
+  IL_0008:  ldloc.0
+  IL_0009:  call       ""S A.Foo(S)""
+  IL_000e:  box        ""S""
+  IL_0013:  call       ""void System.Console.WriteLine(object)""
+  IL_0018:  ret
+}");
         }
 
         [WorkItem(543039, "DevDiv")]

diff --git a/src/Compilers/CSharp/Test/Emit/packages.config b/src/Compilers/CSharp/Test/Emit/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="Microsoft.DiaSymReader" version="1.0.5" targetFramework="net45" />
-</packages>
+</packages>
diff --git a/src/Compilers/CSharp/Test/Semantic/CSharpCompilerSemanticTest.csproj b/src/Compilers/CSharp/Test/Semantic/CSharpCompilerSemanticTest.csproj
@@ -138,7 +138,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
@@ -156,4 +156,4 @@
     <Import Project="..\..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
     <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/CSharp/Test/Semantic/packages.config b/src/Compilers/CSharp/Test/Semantic/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
 </packages>
diff --git a/src/Compilers/CSharp/Test/Symbol/CSharpCompilerSymbolTest.csproj b/src/Compilers/CSharp/Test/Symbol/CSharpCompilerSymbolTest.csproj
@@ -50,7 +50,7 @@
   <ItemGroup Label="File References">
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="System.Reflection.Metadata.dll">
       <HintPath>..\..\..\..\..\packages\System.Reflection.Metadata.$(SystemReflectionMetadataVersion)\lib\portable-net45+win8\System.Reflection.Metadata.dll</HintPath>

diff --git a/src/Compilers/CSharp/Test/Symbol/packages.config b/src/Compilers/CSharp/Test/Symbol/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="Microsoft.DiaSymReader" version="1.0.5" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
 </packages>
diff --git a/src/Compilers/CSharp/Test/Syntax/CSharpCompilerSyntaxTest.csproj b/src/Compilers/CSharp/Test/Syntax/CSharpCompilerSyntaxTest.csproj
@@ -164,7 +164,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
@@ -185,4 +185,4 @@
     <Import Project="..\..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
     <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/CSharp/Test/Syntax/packages.config b/src/Compilers/CSharp/Test/Syntax/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
 </packages>
diff --git a/src/Compilers/CSharp/Test/WinRT/CSharpWinRTTest.csproj b/src/Compilers/CSharp/Test/WinRT/CSharpWinRTTest.csproj
@@ -53,7 +53,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary">
-      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="System.Collections.Immutable, Version=$(SystemCollectionsImmutableAssemblyVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -79,4 +79,4 @@
     <Import Project="..\..\..\..\..\build\Targets\VSL.Imports.targets" />
     <Import Project="..\..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/CSharp/Test/WinRT/packages.config b/src/Compilers/CSharp/Test/WinRT/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
-</packages>
+</packages>
diff --git a/src/Compilers/Core/CodeAnalysisTest/CodeAnalysisTest.csproj b/src/Compilers/Core/CodeAnalysisTest/CodeAnalysisTest.csproj
@@ -94,7 +94,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Xml" />
@@ -192,4 +192,4 @@
     <Import Project="..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
     <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/Core/CodeAnalysisTest/packages.config b/src/Compilers/Core/CodeAnalysisTest/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
 </packages>
diff --git a/src/Compilers/Core/MSBuildTaskTests/MSBuildTaskTests.csproj b/src/Compilers/Core/MSBuildTaskTests/MSBuildTaskTests.csproj
@@ -93,7 +93,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Xml" />
@@ -114,4 +114,4 @@
   <ImportGroup Label="Targets">
     <Import Project="..\..\..\..\build\Targets\VSL.Imports.targets" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/Core/MSBuildTaskTests/packages.config b/src/Compilers/Core/MSBuildTaskTests/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="Microsoft.DiaSymReader" version="1.0.5" targetFramework="net45" />
   <package id="Moq" version="4.2.1402.2112" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />

diff --git a/src/Compilers/Core/VBCSCompilerTests/VBCSCompilerTests.csproj b/src/Compilers/Core/VBCSCompilerTests/VBCSCompilerTests.csproj
@@ -113,7 +113,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150716-08\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
+      <HintPath>..\..\..\..\packages\Microsoft.CodeAnalysis.Test.Resources.Proprietary.1.1.0-beta1-20150824-02\lib\net45\Microsoft.CodeAnalysis.Test.Resources.Proprietary.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Xml" />
@@ -139,4 +139,4 @@
     <Import Project="..\..\..\..\build\Targets\Roslyn.Toolsets.Xunit.targets" />
     <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   </ImportGroup>
-</Project>
+</Project>
diff --git a/src/Compilers/Core/VBCSCompilerTests/packages.config b/src/Compilers/Core/VBCSCompilerTests/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150716-08" targetFramework="net45" />
+  <package id="Microsoft.CodeAnalysis.Test.Resources.Proprietary" version="1.1.0-beta1-20150824-02" targetFramework="net45" />
   <package id="Microsoft.DiaSymReader" version="1.0.5" targetFramework="net45" />
   <package id="Moq" version="4.2.1402.2112" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />