Orchard.Web: Copying Roslyn files to the output folder using the provided target (CopyRoslynCompilerFilesToOutputDirectory) instead of our custom one

Orchard.proj

@@ -142,9 +142,8 @@
     <!-- To make sure that Roslyn tools are available, even if the Compile task was not called before this. -->
     <MSBuild
       Projects="$(OrchardWebFolder)\Orchard.Web.csproj"
-      Targets="CopyRoslynFilesToOutputFolder"
-      Properties="Configuration=$(Configuration)" />
-    <!-- The actual compilation with views also compiled. -->
+      Targets="CopyRoslynCompilerFilesToOutputDirectory" />
+    <!-- Compile to "regular" output folder for devs using VS locally -->
     <MSBuild
       Projects="$(Solution)"
       Targets="Build"
@@ -212,7 +211,6 @@
       <Stage-Media Include="$(SrcFolder)\Orchard.Web\Media\OrchardLogo.png" />
       <Stage-PoFiles Include="$(SrcFolder)\Orchard.Web\**\*.po" />
       <Stage-Core Include="$(WebSitesFolder)\Orchard.Core\**\*" Exclude="$(WebSitesFolder)\Orchard.Core\**\bin\**\*" />
-      <Stage-Roslyn Include="$(SrcFolder)\Orchard.Web\bin\roslyn\*" />
      
       <!-- Get list of module names from the module definition files within ModulesSrcFolder -->
       <Stage-Modules-Definitions Include="$(ModulesSrcFolder)\**\Module.txt" />
@@ -254,7 +252,7 @@
 
     <!-- Copying module binaries is somewhat tricky: From a module "bin" directory, we
          only want to include the files that are _not_ already present in 
-         the "Orchard.Web\Bin" folder (except for "Orchard.Web\bin\roslyn"). -->
+         the "Orchard.Web\Bin" folder. -->
     <FilterModuleBinaries
       ModulesBinaries="@(Stage-Modules-Binaries)"
       OrchardWebBinaries="@(Stage-Orchard-Web-Bins)">
@@ -284,7 +282,6 @@
     <Copy SourceFiles="@(Stage-Themes-Custom)" DestinationFiles="@(Stage-Themes-Custom->'$(StageFolder)\Themes\%(ThemeName)\%(RecursiveDir)%(Filename)%(Extension)')"/>
     <Copy SourceFiles="@(Stage-Themes-Binaries-Unique)" DestinationFiles="@(Stage-Themes-Binaries-Unique->'$(StageFolder)\Themes\%(ThemeName)\%(RecursiveDir)%(Filename)%(Extension)')"/>
     <Copy SourceFiles="@(Stage-Themes-Sources)" DestinationFolder="$(StageFolder)\Themes\%(RecursiveDir)"/>
-    <Copy SourceFiles="@(Stage-Roslyn)" DestinationFolder="$(StageFolder)\bin\roslyn"/>
 
     <MakeDir Directories="$(StageFolder)\App_Data"/>
     <WriteLinesToFile File="$(StageFolder)\App_Data\_marker.txt" Lines="some_text" Overwrite="true"/>

src/Orchard.Web/Orchard.Web.csproj

@@ -15,7 +15,8 @@
     <AssemblyName>Orchard.Web</AssemblyName>
     <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
     <LangVersion>7.3</LangVersion>
-    <RoslynCopyToOutDir>false</RoslynCopyToOutDir>
+    <RoslynCopyToOutDir>true</RoslynCopyToOutDir>
+    <RoslynToolPath>$(MSBuildThisFileDirectory)..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.4.1.0\tools\roslyn-4.1.0</RoslynToolPath>
     <UseIISExpress>true</UseIISExpress>
     <IISExpressSSLPort>44300</IISExpressSSLPort>
     <IISExpressAnonymousAuthentication>enabled</IISExpressAnonymousAuthentication>
@@ -275,16 +276,6 @@
     </PropertyGroup>
     <CallTarget Targets="ExcludeRootBinariesDeployment" />
   </Target>
-  <Target Name="CopyRoslynFilesToOutputFolder" AfterTargets="AfterBuild">
-    <!-- Copying Roslyn tools and their dependencies to the "bin" folder for Dynamic Compilation. -->
-    <PropertyGroup>
-      <RoslynFilesDestination>$(ProjectDir)bin\roslyn\</RoslynFilesDestination>
-    </PropertyGroup>
-    <ItemGroup>
-      <RoslynFiles Include="..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.4.1.0\tools\Roslyn-4.1.0\*" />
-    </ItemGroup>
-    <Copy SourceFiles="@(RoslynFiles)" DestinationFolder="$(RoslynFilesDestination)" Condition="!Exists('$(RoslynFilesDestination)csc.exe')" />
-  </Target>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>