- Making Project.Language check case sensitive

# Conflicts:
#	src/VisualStudio/Core/Def/Implementation/TableDataSource/VisualStudioBaseDiagnosticListTable.LiveTableDataSource.cs

Fix VS binding redirects

Merge master into future

Include System.IO.FileSystem in Roslyn.Build.Util package

Include System.IO.FileSystem in Roslyn.Build.Util package

will result in a linked doc language being “TypeScript” when the original
doc language was “C#”. This is because GetLinkedDocumentIds() and GetRelatedDocumentIds()
retrieve documents based on the file path and both of the ContainedDocuments will have
the same path (ex: LoginView.cshtml) with different documentIds.

This leads to NullReferenceExceptions in Salsa ContainedDocument scenarios

Fix:
- Change GetRelatedDocumentIds(DocumentId documentId) and GetLinkedDocumentIds() to filter documents by language
- Add GetDocumentGroupKey method to AbstractRoslynTableDataSource and use this instead of GetRelatedDocumentIds for the aggregated key

fixed build dedup bug caused by recent change.

Merge stabilization into master

Add a regression test for binding local functions in incomplete code

Checking in the IDE test plan document

OOP #1 - new analyzer engine that uses CompilerAnalyzer model

Add missing nugets to VS setup VSIX

added flag for including project non local result.

make analyzer driver won't get into action execution when there is actually no action for the analyzer

Do not throw if initialized by Winforms UI thread
Fixes https://github.com/dotnet/roslyn/issues/10510

Fix redirects and SCI version

Update SRM to 1.3.0-rc3-24005-00, SCI to 1.2.0-rc3-24005-00 and DSR to 1.0.8-rc2-60325

Add `unsafe` to local functions syntax spec

Rebase fixup

Fix CPC

Related to #10521

Don't block in library code.

Earlier the perf test runner using CPC was broken. This change fixes that.

With this change, we will be running CPC a little different than what we used to.
Earlier, we run CPC for 'n' of iterations and the first iteration should to be a
warmup iteration. Each iteration runs all the tests once.

Now, we run CPC for 'n' iterations for each test and 'n' is defined by each test.
The first iteration is, again, a warmup iteration and the rest are considered for the
metrics calculation. With this model, each iteration will run just one test instead of
running all the tests in an iteration. This helps in making the warmup iteration, a
true warmup iteration.

Minor changes:
Since the test csx returns an object now, the test related information has been
moved to the corresponding test csx files.