- The Mac implementation does not have fallback logic like the windows variant because Workspaces in VS mac world are spun up / torn down regularly. We don't want to be tracking down bugs that involve us adding services or Razor logic to Workspaces that have nothing to do with Razor.
- Added a test for the `DefaultVisualStudioWorkspaceAccessor`. Could not add other tests due to limitations of MonoDevelop's abstractions.
#1989
- Updated the a `VisualStudioWorkspaceAccessor` API in windows to enable the factory to retrieve a workspace given a text buffer.
- Added a way to add test services to `AdhocWorkspace` so we can test against services being retrieved from a `Workspace`. This will be much more common once we rely on services coming from `TextBuffer`s in our other tooling pieces.
- Added tests for the default workspace provider.
#1989
N. Taylor Mullen