Misc renames and minor cleanup

Add CompilationOutputFiles test helper.

Enable Glyph's on code actions.

Don't call GetGenericsArguments unless IsGeneric is true

Test projects automatically inherit app.config

Fix race in Code Model cache

Add "*" on enter pressed within comment blocks

Update to SRM 1.2.0-rc3-23811

Document "Better Betterness" for C# 6 and the compat fix

This addresses a race condition introduced in our per-FileCodeModel cache of code elements by PR #8424. In that change, we attempted to
handle the situation where a code model element is about to be inserted in the cache with the same "node key" is an element that is
already in the cache. This can happen in normal operation if a Code Model consumer were to programmatically add a variable, delete
the variable's underlying text and immediately add the same variable again. The original fix would conditionally remove the old
element from the cache if its "node key" could not be resolved in the FileCodeModel's current syntax tree. Then it would add the new element
with the same "node key" to the cache. However, this appears to not be deterministic and would sometimes result in a collision.

This PR changes the policy to **unconditionally** remove the old element from the cache if one exists before adding the new element.
Because the purpose of the cache is to return existing elements when accessing various collections (e.g. "Members"), it makes sense
that the latest element would be returned. In addition, because the "node key" referenced by the old element has become valid again, accessing
properties on the old element will continue to work.

Fixes #8452

More test coverage for delegate invoke with conditional access

Ignore synthesized delegates in AnonymousTypeManager.GetAnonymousTypeMap

Add more diagnostic information to better understand what's happening if TestAddAndRemoveViaTextChangeManyTimes fails

Improve selection handling when sending to interactive

Changes needed to create a F# language service based on Roslyn workspace model 

Reduce VM usage for RPS tests by using a special back-door interface to mark analyzer as needing less work.

Fix bug in IVsSimpleLibrary2.CreateNavInfo(...) implementation where we were clearing string builders before they were used