swift

f41e6598 - [CSGen] Prevent `@concurrent` on closures from skipping `throws` inference

[CSGen] Prevent `@concurrent` on closures from skipping `throws` inference Introduction of `@concurrent` attribute caused an unintended side-effect in `ClosureEffectsRequest` since the attribute could only be used on `async` types setting `async` too early prevented body analysis for `throws` from running. Resolves: rdar://151421590 (cherry picked from commit cda9866b26e0d350dea99c88df1c3aaf6f04edfe)