Add an adapter assembly for the F# editor

Roslyn.sln

@@ -401,6 +401,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Insertion", "Insertion", "{
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevDivInsertionFiles", "src\Setup\DevDivInsertionFiles\DevDivInsertionFiles.csproj", "{6362616E-6A47-48F0-9EE0-27800B306ACB}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ExternalAccess", "ExternalAccess", "{8977A560-45C2-4EC2-A849-97335B382C74}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.ExternalAccess.FSharp", "src\Tools\ExternalAccess\FSharp\Microsoft.CodeAnalysis.ExternalAccess.FSharp.csproj", "{BD8CE303-5F04-45EC-8DCF-73C9164CD614}"
+EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		src\Compilers\VisualBasic\BasicAnalyzerDriver\BasicAnalyzerDriver.projitems*{2523d0e6-df32-4a3e-8ae0-a19bffae2ef6}*SharedItemsImports = 4
@@ -1058,6 +1062,10 @@ Global
 		{6362616E-6A47-48F0-9EE0-27800B306ACB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6362616E-6A47-48F0-9EE0-27800B306ACB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6362616E-6A47-48F0-9EE0-27800B306ACB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BD8CE303-5F04-45EC-8DCF-73C9164CD614}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BD8CE303-5F04-45EC-8DCF-73C9164CD614}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BD8CE303-5F04-45EC-8DCF-73C9164CD614}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BD8CE303-5F04-45EC-8DCF-73C9164CD614}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -1246,6 +1254,8 @@ Global
 		{23405307-7EFF-4774-8B11-8F5885439761} = {55A62CFA-1155-46F1-ADF3-BEEE51B58AB5}
 		{AFA5F921-0650-45E8-B293-51A0BB89DEA0} = {8DBA5174-B0AA-4561-82B1-A46607697753}
 		{6362616E-6A47-48F0-9EE0-27800B306ACB} = {AFA5F921-0650-45E8-B293-51A0BB89DEA0}
+		{8977A560-45C2-4EC2-A849-97335B382C74} = {FD0FAF5F-1DED-485C-99FA-84B97F3A8EEC}
+		{BD8CE303-5F04-45EC-8DCF-73C9164CD614} = {8977A560-45C2-4EC2-A849-97335B382C74}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {604E6B91-7BC0-4126-AE07-D4D2FEFC3D29}

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

+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <Platform Condition="'$(Platform)' == ''">AnyCPU</Platform>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <OutputType>Library</OutputType>
+    <RootNamespace>Microsoft.CodeAnalysis.ExternalAccess.FSharp</RootNamespace>
+    <TargetFramework>net472</TargetFramework>
+
+    <!-- NuGet -->
+    <IsPackable>true</IsPackable>
+    <PackageId>Microsoft.CodeAnalysis.ExternalAccess.FSharp</PackageId>
+    <PackageDescription>
+      A supporting package for F#:
+      https://github.com/Microsoft/visualfsharp
+    </PackageDescription>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <!--
+      ⚠ ONLY F# ASSEMBLIES MAY BE ADDED HERE ⚠
+    -->
+    <InternalsVisibleTo Include="FSharp.Editor" Key="$(FSharpKey)" />
+    <InternalsVisibleTo Include="FSharp.LanguageService" Key="$(FSharpKey)" />
+  </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

@@ -27,6 +27,8 @@
 [assembly: ProvideRoslynBindingRedirection("Microsoft.VisualStudio.LanguageServices.Xaml.dll")]
 [assembly: ProvideRoslynBindingRedirection("Microsoft.VisualStudio.LanguageServices.Razor.RemoteClient.dll")]
 
+[assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.ExternalAccess.FSharp.dll")]
+
 [assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.Elfie.dll")]
 
 [assembly: ProvideRoslynBindingRedirection("Microsoft.CodeAnalysis.Remote.Razor.ServiceHub.dll")]

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

@@ -36,6 +36,11 @@
       <IncludeOutputGroupsInVSIX>BuiltProjectOutputGroup</IncludeOutputGroupsInVSIX>
       <ForceIncludeInVSIX>true</ForceIncludeInVSIX>
     </ProjectReference>
+    <ProjectReference Include="..\..\Tools\ExternalAccess\FSharp\Microsoft.CodeAnalysis.ExternalAccess.FSharp.csproj">
+      <Name>Microsoft.CodeAnalysis.ExternalAccess.FSharp</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>