swift

4331b256 - [Test] Used test header rather than SDK.

[Test] Used test header rather than SDK. Stopped validation-test/compiler_crashers_2_fixed/rdar79383990.swift from trying to call -[NSBackgroundActivityScheduler scheduleWithBlock:] async--that method is now annotated NS_SWIFT_DISABLE_ASYNC. (cherry picked from commit 4a8a647e4c9b8ce943df8464a4349e574ee34d25) (cherry picked from commit bdbf76a8e8b3a14a3e57e95d7c19f726c52bee9b)