Add an adapter assembly for TypeScript

Roslyn.sln

@@ -409,6 +409,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.Exte
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.ExternalAccess.Razor", "src\Tools\ExternalAccess\Razor\Microsoft.CodeAnalysis.ExternalAccess.Razor.csproj", "{2FB6C157-DF91-4B1C-9827-A4D1C08C73EC}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.ExternalAccess.TypeScript", "src\Tools\ExternalAccess\TypeScript\Microsoft.CodeAnalysis.ExternalAccess.TypeScript.csproj", "{1638FB04-0298-4341-B5E0-8A13B4823C81}"
+EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		src\Compilers\VisualBasic\BasicAnalyzerDriver\BasicAnalyzerDriver.projitems*{2523d0e6-df32-4a3e-8ae0-a19bffae2ef6}*SharedItemsImports = 4
@@ -1078,6 +1080,10 @@ Global
 		{2FB6C157-DF91-4B1C-9827-A4D1C08C73EC}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2FB6C157-DF91-4B1C-9827-A4D1C08C73EC}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2FB6C157-DF91-4B1C-9827-A4D1C08C73EC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1638FB04-0298-4341-B5E0-8A13B4823C81}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1638FB04-0298-4341-B5E0-8A13B4823C81}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1638FB04-0298-4341-B5E0-8A13B4823C81}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1638FB04-0298-4341-B5E0-8A13B4823C81}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -1270,6 +1276,7 @@ Global
 		{BD8CE303-5F04-45EC-8DCF-73C9164CD614} = {8977A560-45C2-4EC2-A849-97335B382C74}
 		{47DF466C-0634-4412-BC65-D70B82C5B77D} = {8977A560-45C2-4EC2-A849-97335B382C74}
 		{2FB6C157-DF91-4B1C-9827-A4D1C08C73EC} = {8977A560-45C2-4EC2-A849-97335B382C74}
+		{1638FB04-0298-4341-B5E0-8A13B4823C81} = {8977A560-45C2-4EC2-A849-97335B382C74}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {604E6B91-7BC0-4126-AE07-D4D2FEFC3D29}

src/Tools/ExternalAccess/TypeScript/Microsoft.CodeAnalysis.ExternalAccess.TypeScript.csproj

+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <Platform Condition="'$(Platform)' == ''">AnyCPU</Platform>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <OutputType>Library</OutputType>
+    <RootNamespace>Microsoft.CodeAnalysis.ExternalAccess.TypeScript</RootNamespace>
+    <TargetFramework>net472</TargetFramework>
+
+    <!-- NuGet -->
+    <IsPackable>true</IsPackable>
+    <PackageId>Microsoft.CodeAnalysis.ExternalAccess.TypeScript</PackageId>
+    <PackageDescription>
+      A supporting package for TypeScript:
+      https://devdiv.visualstudio.com/DevDiv/_git/TypeScript-VS
+    </PackageDescription>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <!--
+      ⚠ ONLY TYPESCRIPT ASSEMBLIES MAY BE ADDED HERE ⚠
+    -->
+    <InternalsVisibleTo Include="Microsoft.CodeAnalysis.TypeScript.EditorFeatures" Key="$(TypeScriptKey)" />
+    <InternalsVisibleTo Include="Microsoft.VisualStudio.LanguageServices.TypeScript" Key="$(TypeScriptKey)" />
+    <InternalsVisibleTo Include="Roslyn.Services.Editor.TypeScript.UnitTests" Key="$(TypeScriptKey)" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\Compilers\Core\Portable\Microsoft.CodeAnalysis.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PublicAPI Include="PublicAPI.Shipped.txt" />
+    <PublicAPI Include="PublicAPI.Unshipped.txt" />
+  </ItemGroup>
+
+</Project>
\ No newline at end of file

src/VisualStudio/Setup/AssemblyRedirects.cs

@@ -30,6 +30,7 @@
 [assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.ExternalAccess.FSharp.dll")]
 [assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.ExternalAccess.MonoDevelop.dll")]
 [assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.ExternalAccess.Razor.dll")]
+[assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.ExternalAccess.TypeScript.dll")]
 
 [assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.Elfie.dll")]
 

src/VisualStudio/Setup/Roslyn.VisualStudio.Setup.csproj

@@ -51,6 +51,11 @@
       <IncludeOutputGroupsInVSIX>BuiltProjectOutputGroup</IncludeOutputGroupsInVSIX>
       <ForceIncludeInVSIX>true</ForceIncludeInVSIX>
     </ProjectReference>
+    <ProjectReference Include="..\..\Tools\ExternalAccess\TypeScript\Microsoft.CodeAnalysis.ExternalAccess.TypeScript.csproj">
+      <Name>Microsoft.CodeAnalysis.ExternalAccess.TypeScript</Name>
+      <IncludeOutputGroupsInVSIX>BuiltProjectOutputGroup</IncludeOutputGroupsInVSIX>
+      <ForceIncludeInVSIX>true</ForceIncludeInVSIX>
+    </ProjectReference>
     <ProjectReference Include="..\..\Workspaces\Core\Desktop\Microsoft.CodeAnalysis.Workspaces.Desktop.csproj">
       <Name>Workspaces.Desktop</Name>
       <IncludeOutputGroupsInVSIX>BuiltProjectOutputGroup</IncludeOutputGroupsInVSIX>