Fix alpha-substitution for nested lambdas in a generic context.

Remove code from Workspaces.VB/C#.Desktop

Make Finally keyword recommendation more precise

Fixes #2623.

Fixes #2623

Remove AssemblyData.GetWinMdVersion

A method declared with __arglist is not a candidate with a keyword argument list

Fixed some formatting, added Test for checking return keyword

Fix for #2272 - use of default enum method parameter throws exception

This change removes all C# specific references from
MS.CA.Workspaces.CSharp.Desktop.dll.  This demonstrates the pattern by
which we could migrate the language specific MSBuild code into a shared
DLL which has no language specific dependencies.  This pattern will
allow us to delete both MS.CA.W.CSHarpDesktop and
MS.Ca.W.VisualBasic.Desktop.

Merge branch 'noopbug/self-server' of https://github.com/noopbug/roslyn into noopbug-noopbug/self-server

Conflicts:
	src/Compilers/Core/MSBuildTask/ManagedCompiler.cs
	src/Compilers/Core/VBCSCompilerTests/CompilerServerTests.cs

Simplify DynamicFlagsCustomTypeInfo

Make add missing reference more reliable.

The BitArray approach wasn't meaningfully reducing complexity, so we'll
revert to an earlier approach that reduces allocations (by reusing an
existing ReadOnlyCollection<byte> as the backing data when possible).

Fixes #2549

Revert "Unskip passing tests related to double negative 0"

This reverts commit cdf6029c.

Centralize many of our reflection uses

Don't ignore reference properties and documentation provider passed to MetadataReference.CreateFromAssembly

Get rid of Roslyn.VisualStudio.Setup as a shipping assembly

Improve error reporting around lambdas and multiple overloads in VB

Issue #2666 - MefHostServices fails loading unsigned assemblies

Rename: Check for existence of BufferUndoState in UndoTemporaryEdits

made ref count check not to crash VS on shutdown

Getting the speculative type info for "dynamic" returns the dynamic type.

Null check in AnalyzerHelper for Languages that don't participate in the compilation

Fixes #2631