Fix make method async/sync and some related code fixes

Snap 16.3-preview2

Move refa to helpers5

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19379.29

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19378.1

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19377.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19376.18

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19375.15

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19375.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19374.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19373.6

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19372.10

Fixes https://github.com/dotnet/roslyn/issues/30325

Asking for Location.SourceTree may not produce a syntax tree, even if there
is a backing syntax tree, because a speculative tree node may produce NoLocation
when asked for one, even if there is a backing tree. This change stops us from
trying to do the SyntaxTree->Location->SyntaxTree roundtrip because it's not guaranteed
to succeed.

Fixes #37454

Merge release/dev16.3-preview1 to master

Merge release/dev16.2 to release/dev16.3-preview1

Fix #37456 in 16.2 by cherry-picking commit a0009846 (from PR #37487)

Remove unneeded method

Move lsp code actions

* Don't drop a token passed to a syntax factory method.

* Delete unintended comment.
Fixes #37467

Support GetDeclaredSymbol on ForeachStatementSyntax and add tests for…

* Report rude edits when updating method containing switch expression.

Fix stackalloc rude edits.

* Updating modifiers of local functions

* await foreach, await using

* Improve error message

* Distinguish async foreach/using from synchronous in error messages

* Using declaration

* Report rude edit when editing using statement/declaration around non-leaf AS

* Rude edits for switch with patterns

* Fix VB issues with active statements in nested single-line functions and when updating iterators

* Update comment

* Fix duplicate rude edit

* Fix region tracking for regions with local functions

Fixes #37427

* Add to test pre review comment.