2.9.0
Microsoft.Net.Compilers
$(BuildToolsTaskDir)roslyn/build/Microsoft.Net.Compilers.props
Microsoft.NETCore.Compilers
$(PackagesDir)/$(RoslynPackageName.ToLower())/$(RoslynVersion)/
$(RoslynPackageDir)build/$(RoslynPackageName).props
Portable
$(RoslynPackageDir)tools
$(BuildToolsTaskDir)roslyn/tools
csc.exe
$(RoslynPackageDir)tools
$(BuildToolsTaskDir)roslyn/tools
vbc.exe