Some of the tests now depend on features provided by Swift Syntax, and
will fail to pass if building without Swift Syntax support.
This commits marks all the tests I know fail to pass when Swift Syntax
is disabled.
- #70281 modified `ASTGen/verify-parse.swift`
- #70287 created `refactoring/SyntacticRename/operator.swift` and `SourceKit/RelatedIdents/operator.swift`
- #70389 modified `SourceKit/Refactoring/basic.swift` and indirectly
modified all `refactoring/ExtractFunction/*` tests.
Adapt the `ThrowingEntityAnalyzer` to pick up any
`await` keywords and add an `async` to the extracted
function if necessary along with an `await` for its
call.
rdar://72199949
