Improve Overload Resolution error reporting.

Fixes #2291.

Expose a public API for building RQNames

* Rename RQNameService to RQName and make public.
* Rename TryBuildForPublicApi to From() and have it return null.
* Remove TryBuild, since we only build RQNames for public Api's now.
* Clean up implementation to not pass flag around for buildForPublicApi
* Remove RQDynamicType
* Create a singleton for System.Object.
* Add a comment explaining why we erase dynamic.

Fixes #55.

Add missing reference to Roslyn.VisualStudio.InteractiveComponents.vsix.

Enc: Fixes lambda id mapping

Fix for Issues #2264 and #2267

Be tolerant of msbuild failures 

Report semantic errors in lambdas

Fixes #1744
 Fixes #1241
 Fixes #1239

Include cref text in the outlining banner

Fixes #2129.

Expose DocumentationCommentId as public API

Be tolerant of msbuild failures when opening project files to find output path for loading metadata instead of project sources.

Don't use Uri.AbsolueUri for the url that is displayed in the tooltip.

This ensures that the url displayed in the tooltip is more human readable.

Extend our cross platform build

Fix the maximum length of the identifier used in the rename dashboard to prevent it from expanding arbitrarily.

Fixes #713.

Make Rename tracking consume Async Lightbulb and show a live preview.

This ensures that the url displayed in the tooltip is more human readable.

Remove analyzer dependency support

Vsix contents - attempt 2

This reverts commit 8cfc284c.

Looking at some crash dumps, I noticed some DkmModuleInstances that claim the length of their metadata bytes is 0 (zero).  I don't yet fully understand the scenarios where this may occur, but it seems like a good idea to assert that this is not the case...

Created a cross platform solution

This solution file contains the set of projects which we support
building cross platform.

Note: ideally this would be the same as Toolset.sln.  However there are
certain dependencies which we simply can’t use cross platform at the
moment (MSBuild in particular).  Eventually these two solutions should
converge if possible.

Fix stack overflows when running in Mono

Several of our test suites have cycles between static field
initializers and the containing types constructor.  The mono runtime
ends up stack overflowing on these cycles and prevents us from running
suites.  Changing the suites to remove this cycle via lazy field
initialization.

Remove references to the AnalyzerDependency item.

Fix a few issues with our cross platform tests

made error list to be loaded quite upfront so that error from early stat...

Namespace FindRefs Improvements

Handles the following issues:

- Correctly detect when an xunit run fails.  Previously only checking
the last run.
- Generate the xml results file for our xunit runs.  This will give us
better Jenkins output for cross plat runs.
- Disable a test which was failing due to the first issue I fixed.

Change Signature: Update all documents from the base solution

Revert "Exclude transitive dependencies from vsixes."

This reverts commit 0eba2636.