swift

7da00d4e - [TypeChecker] Make sure that @preconcurrency use is detected in base expressions

[TypeChecker] Make sure that @preconcurrency use is detected in base expressions This expands https://github.com/swiftlang/swift/pull/77510 to base expressions of calls, subscripts and members to make sure that if the base has `@preconcurrency` declaration at some level. Otherwise, the availability checker won't appropriately downgrade unavailable `Sendable` conformances for `@preconcurrency` declarations. (cherry picked from commit aa0b3561474fea3b424d31b7c70aae549c04d46b)