Remove netstandard1.3 from code base

src/Compilers/Core/Portable/CaseInsensitiveComparison.cs

@@ -117,7 +117,7 @@ public override int Compare(string? str1, string? str2)
                 return str1.Length - str2.Length;
             }
 
-#if !NET20 && !NETSTANDARD1_3
+#if !NET20
             public int Compare(ReadOnlySpan<char> str1, ReadOnlySpan<char> str2)
             {
                 int len = Math.Min(str1.Length, str2.Length);
@@ -168,7 +168,7 @@ public override bool Equals(string? str1, string? str2)
                 return true;
             }
 
-#if !NET20 && !NETSTANDARD1_3
+#if !NET20
             public bool Equals(ReadOnlySpan<char> str1, ReadOnlySpan<char> str2)
             {
                 if (str1.Length != str2.Length)
@@ -293,7 +293,7 @@ public override int GetHashCode(string str)
         /// </remarks>
         public static bool Equals(string left, string right) => s_comparer.Equals(left, right);
 
-#if !NET20 && !NETSTANDARD1_3
+#if !NET20
         /// <summary>
         /// Determines if two strings are equal according to Unicode rules for case-insensitive
         /// identifier comparison (lower-case mapping).
@@ -335,7 +335,7 @@ public override int GetHashCode(string str)
         /// </remarks>
         public static int Compare(string left, string right) => s_comparer.Compare(left, right);
 
-#if !NET20 && !NETSTANDARD1_3
+#if !NET20
         /// <summary>
         /// Compares two strings according to the Unicode rules for case-insensitive
         /// identifier comparison (lower-case mapping).

src/Compilers/Core/Portable/InternalUtilities/FailFast.cs

@@ -20,9 +20,7 @@ internal static class FailFast
 
         [DebuggerHidden]
         [DoesNotReturn]
-#if !NETSTANDARD1_3
         [MethodImpl(MethodImplOptions.Synchronized)]
-#endif
         internal static void OnFatalException(Exception exception)
         {
             // EDMAURER Now using the managed API to fail fast so as to default
@@ -49,9 +47,7 @@ internal static void OnFatalException(Exception exception)
 
         [DebuggerHidden]
         [DoesNotReturn]
-#if !NETSTANDARD1_3
         [MethodImpl(MethodImplOptions.Synchronized)]
-#endif
         internal static void Fail(string message)
         {
             DumpStackTrace(message: message);
@@ -82,7 +78,7 @@ internal static void DumpStackTrace(Exception? exception = null, string? message
                 }
             }
 
-#if !NET20 && !NETSTANDARD1_3
+#if !NET20
             Console.WriteLine("Stack trace of handler");
             var stackTrace = new StackTrace();
             Console.WriteLine(stackTrace.ToString());

src/Compilers/Core/Portable/InternalUtilities/FatalError.cs

@@ -62,7 +62,7 @@ public static void OverwriteHandler(ErrorReporterHandler? value)
         // In the result provider, we aren't copying our handler to somewhere else, so we don't
         // need this method. It's too much of a challenge to shared code to work in
         // old versions of the runtime since APIs changed over time.
-#if !NET20 && !NETSTANDARD1_3 
+#if !NET20
 
         /// <summary>
         /// Copies the handler in this instance to the linked copy of this type in this other assembly.

src/ExpressionEvaluator/CSharp/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.CSharp.ResultProvider.csproj

@@ -5,8 +5,7 @@
     <OutputType>Library</OutputType>
     <RootNamespace>Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator</RootNamespace>
     <AssemblyName>Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ResultProvider</AssemblyName>
-    <!-- We need to support Windows OneCore, which runs Core CLR 1.0 (Windows OneCore) -->
-    <TargetFramework>netstandard1.3</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <ApplyNgenOptimization>full</ApplyNgenOptimization>
   </PropertyGroup>
   <ItemGroup Label="Linked Files">

src/ExpressionEvaluator/Core/Source/FunctionResolver/Microsoft.CodeAnalysis.FunctionResolver.csproj

@@ -6,8 +6,7 @@
     <RootNamespace>Microsoft.CodeAnalysis.ExpressionEvaluator</RootNamespace>
     <AssemblyName>Microsoft.CodeAnalysis.ExpressionEvaluator.FunctionResolver</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <!-- This component is deployed with remote debugger tools. It needs to work on .NET Framework 4.5 and Core CLR 1.0 (Windows OneCore) -->
-    <TargetFrameworks>net45;netstandard1.3</TargetFrameworks>
+    <TargetFrameworks>net45;netstandard2.0</TargetFrameworks>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\..\..\..\Compilers\Core\Portable\InternalUtilities\ExceptionUtilities.cs">

src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.ResultProvider.csproj

@@ -5,8 +5,7 @@
     <OutputType>Library</OutputType>
     <RootNamespace>Microsoft.CodeAnalysis.ExpressionEvaluator</RootNamespace>
     <AssemblyName>Microsoft.CodeAnalysis.ExpressionEvaluator.ResultProvider</AssemblyName>
-    <!-- We need to support Windows OneCore, which runs Core CLR 1.0 (Windows OneCore) -->
-    <TargetFramework>netstandard1.3</TargetFramework>
+    <TargetFrameworks>netstandard2.0</TargetFrameworks>
     <ApplyNgenOptimization>full</ApplyNgenOptimization>
   </PropertyGroup>
   <ItemGroup Label="Linked Files">
@@ -78,6 +77,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.VisualStudio.Debugger.Engine-implementation" Version="$(MicrosoftVisualStudioDebuggerEngineimplementationVersion)" />
     <PackageReference Include="Microsoft.VisualStudio.Debugger.Metadata-implementation" Version="$(MicrosoftVisualStudioDebuggerMetadataimplementationVersion)" />
+    <PackageReference Include="System.Memory" Version="$(SystemMemoryVersion)" />
   </ItemGroup>
   <Import Project="..\ResultProvider.projitems" Label="Shared" />
 </Project>

src/ExpressionEvaluator/Package/ExpressionEvaluatorPackage.csproj

@@ -35,7 +35,7 @@
       <IncludeOutputGroupsInVSIX>BuiltProjectOutputGroup%3bVsdConfigOutputGroup;SatelliteDllsProjectOutputGroup</IncludeOutputGroupsInVSIX>
       <IncludeOutputGroupsInVSIXLocalOnly>DebugSymbolsProjectOutputGroup</IncludeOutputGroupsInVSIXLocalOnly>
       <ForceIncludeInVSIX>true</ForceIncludeInVSIX>
-      <AdditionalProperties>TargetFramework=netstandard1.3</AdditionalProperties>
+      <AdditionalProperties>TargetFramework=netstandard2.0</AdditionalProperties>
       <PkgDefEntry>BindingRedirect</PkgDefEntry>
     </ProjectReference>
     <ProjectReference Include="..\Core\Source\ResultProvider\Portable\Microsoft.CodeAnalysis.ResultProvider.csproj">

src/ExpressionEvaluator/VisualBasic/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.VisualBasic.ResultProvider.vbproj

@@ -4,8 +4,7 @@
   <PropertyGroup>
     <OutputType>Library</OutputType>
     <AssemblyName>Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ResultProvider</AssemblyName>
-    <!-- We need to support Windows OneCore, which runs Core CLR 1.0 (Windows OneCore) -->
-    <TargetFramework>netstandard1.3</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <RootNamespace></RootNamespace>
   </PropertyGroup>
   <ItemGroup Label="Project References">

src/NuGet/VisualStudio/VS.ExternalAPIs.Roslyn.Package.csproj

@@ -100,10 +100,10 @@
       <_File Include="$(ArtifactsBinDir)Microsoft.VisualStudio.LanguageServices.Xaml\$(Configuration)\net472\Microsoft.VisualStudio.LanguageServices.Xaml.dll" TargetDir="" />
       <_File Include="$(ArtifactsBinDir)Microsoft.VisualStudio.LanguageServices\$(Configuration)\net472\Microsoft.VisualStudio.LanguageServices.dll" TargetDir="" />
 
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.ResultProvider\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.ExpressionEvaluator.ResultProvider.dll" TargetDir="" />
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.CSharp.ResultProvider\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ResultProvider.dll" TargetDir="" />
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.VisualBasic.ResultProvider\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ResultProvider.dll" TargetDir="" />
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.FunctionResolver\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.ExpressionEvaluator.FunctionResolver.dll" TargetDir="" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.ResultProvider\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.ExpressionEvaluator.ResultProvider.dll" TargetDir="" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.CSharp.ResultProvider\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ResultProvider.dll" TargetDir="" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.VisualBasic.ResultProvider\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ResultProvider.dll" TargetDir="" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.FunctionResolver\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.ExpressionEvaluator.FunctionResolver.dll" TargetDir="" />
       <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.VisualBasic.ExpressionCompiler\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ExpressionCompiler.dll" TargetDir="" />
       <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.CSharp.ExpressionCompiler\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ExpressionCompiler.dll" TargetDir="" />
       <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.ExpressionCompiler\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.ExpressionEvaluator.ExpressionCompiler.dll" TargetDir="" />
@@ -113,10 +113,10 @@
       <_File Include="$(ArtifactsBinDir)ResultProvider.NetFX20\$(Configuration)\net20\Microsoft.CodeAnalysis.ExpressionEvaluator.ResultProvider.dll" TargetDir="RemoteDebugger\net20" />
       <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.FunctionResolver\$(Configuration)\net45\Microsoft.CodeAnalysis.ExpressionEvaluator.FunctionResolver.dll" TargetDir="RemoteDebugger\net45" />
 
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.CSharp.ResultProvider\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ResultProvider.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.CSharp.ResultProvider\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ResultProvider.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
       <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.CSharp.ExpressionCompiler\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ExpressionCompiler.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.VisualBasic.ResultProvider\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ResultProvider.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
-      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.FunctionResolver\$(Configuration)\netstandard1.3\Microsoft.CodeAnalysis.ExpressionEvaluator.FunctionResolver.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.VisualBasic.ResultProvider\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ResultProvider.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
+      <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.FunctionResolver\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.ExpressionEvaluator.FunctionResolver.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
       <_File Include="$(ArtifactsBinDir)Microsoft.CodeAnalysis.VisualBasic.ExpressionCompiler\$(Configuration)\netstandard2.0\Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ExpressionCompiler.vsdconfig" TargetDir="LanguageServiceRegistration\ExpressionEvaluatorPackage" />
 
       <!-- Include a few dependencies of Roslyn. These right now are consumed out of the ExternalAPIs NuGet package to do assembly consistency checking in the main VS