* Eliminate differences between Arcade and Roslyn targets

* Remove RootNamespace setting as it's overwritten by Core SDK

Ensure Visual Studio has focus at the start of each new test

Simplify SetForegroundWindow

Refactor change namespace service

Revert #31132

Add a compat overload for IntelliCode

Remove legacy RPS test from opt-prof run

Fix a bug in the syntax generator with VB constructors and attributes.

Project document ordering

* Mark eng\docker\mono.sh executable

* Report error if docker build fails.

Add ability to extract interface to same file. New interfaces will be extracted above code.

* New UI with radio button
* Refactor Abstract service to be less dependent on language implementations
* Always format and simplify code being modified during the refactor
* Move a lot of the work to be async
* Added tests

Add new refactoring feature to wrap/indent/align lists of parameters/arguments

* make sure we release lock when solution is closed by setting working folder to null

* verify solution close removing working folder

Fix couple of bugs in unused private members analyzer

* fixed re-enterance bug in async operation listener.

basically we are calling SetResult inside of a lock and since we used regular lock which allows re-enterance, we sometimes ran arbitary code under lock which re-entered async operation listener and mess everything up.

changed to non re-enterance lock so that it explicitly throws if re-enterance happens.

and make sure call SetResult from other thread (out side of the lock).

* use new task creation option

* renamed methods to have NoLock

* updated comment

Fix double negation of integral `MinValue`s

Fix classification for comments after "#pragma warning" directives

Add missing format for same file extraction. It was removed from GetSolutionWithOriginalTypeUpdatedAsync

More Test Hook Fixes

Fix AddImport to not error on awaited extension methods

Use release bootstrap compiler

The point of using the bootstrap compiler is validating that we can
build the C# code base with the latest C# compiler. Unfortunately the
debug version of the compiler is significantly slower than the Release
version and it slows down our Debug unit test runs accordingly.

This change causes us to prefer a release version of the bootstrap
compiler. The debug bootstrap compiler is still used in the determinism
leg hence we wont't lose coverage here. This should bring our Release
and Debug desktop tests back to the same run time.