swift

c68a17b8 - [Concurrency] Don't infer `nonisolated(nonsending)` on synchronous witnesses

[Concurrency] Don't infer `nonisolated(nonsending)` on synchronous witnesses If the requirement is `nonisolated(nonsending)` but witness is synchronous, prevent actor isolation inference from requirements because this isolation only applies to asynchronous declarations at the moment. Resolves: rdar://153680826 (cherry picked from commit a964282275ff78fc0a058c54ece52a1b39ac4315)