Merge dev16.0 to master

* when PreferProvisionalTab option is added, work is done only in OpenDocument, but not in NavigateTo making the option useless in some cases since NavigateTo makes focus to move to provisional tab right after OpenDocument call which make sure provisional tab to not activated.

fix is following editor team's recommendation from https://devdiv.visualstudio.com/DevDiv/_workitems/edit/402396

* address feedback to wrap whole code under scope

Disable broken checksum validation

Adjust process logging for applicability to current builds

Merge dev16.0 to master

* Document nullable disable for generated code

* Remove vbc2.exe since it's no longer used
* Add xunit.console.exe (64-bit runner)

Include RunTests.exe and xunit.console.x86.exe in .NET event collection

Do not skip editorconfig integration tests

Include the hidden NUL in max path length calculation

Bootstrap builds should use ExitingTraceListener

Move open/closed document checks under the _serializationLock

Fix failure to print test results

See #33476

* pool incrementalHash so that we don't create one unnecessarily

* renamed to s_incrementalHashPool

Avoid trying to write log files longer than max path

Fixes #12106

Merge pull request #33462 from tiesmaster/33242/fix-invalidcast-in-extract-method-on-expression-bodied-ctors

Fix issue #33242: ExtractMethodCodeRefactoringProvider throws invalid cast when used within the body of a constructor expression-member body

The bootstrap builds of the compiler today are using the default trace
listener which presents a dialog. That means when a `Debug.Assert` call
fires we end up hanging the build in Azure.

The intent was always for the bootstrap builds to use the
`ExitingTraceListener`. This way they exit with a crash and call stack
that allows the compiler team to diagnose the failure.

The behavior of `Debug.Assert` showing a dialog is the most likely
explanation for our current random hangs in the determinism leg. That is
the only place we still use a `DEBUG + BOOTSTRAP` build. The symptoms
line up. If that's the case this will start showing us the stack trace
of the assert.

Don't accidentally share a named semaphore between test processes

* Read IBC and VS bootstrapper info from PublishData.json

* Fix IBC directory path

Previously opened additional documents weren't counted as open in
Workspace.IsDocumentOpen, but after
https://github.com/dotnet/roslyn/pull/33165 we can now properly do this
check.

Do not offer to convert object initializers to a compound assignment.

* Document ref enumerator disposal compat break
* Add a ref struct disposal test:
- Check that we don't call Dispose on a ref struct enumerator in language versions lower than 8.0
- Add an execution test to check end to end

These assemblies target netstandard1.3, not 2.0.

Increase diagnostics in determinism job

Merge dev16.0-preview3 to dev16.0

* replace SHA1 to SHA256

* tweak

* Update src/Workspaces/Core/Portable/Workspace/Solution/Checksum.cs
Co-Authored-By: Nheejaechang <heejaechang@outlook.com>

* Update src/Workspaces/Core/Portable/Workspace/Solution/Checksum.cs
Co-Authored-By: Nheejaechang <heejaechang@outlook.com>

* Update src/Workspaces/Core/Portable/Workspace/Solution/Checksum.cs
Co-Authored-By: Nheejaechang <heejaechang@outlook.com>

* tweaks based on PR feedback

* removed unnecessary unsafe

* updated comment

* moved comments around and removed reference to SHA in checksum

Ensure pipename argument quoted

Merge dev16.0 to master