swift

414295df - [AST] `@preconcurrency` conformance applies to implied conformances as well

[AST] `@preconcurrency` conformance applies to implied conformances as well A `@preconcurrency` conformance to an inherited protocol should imply `@preconcurrency` on its parents as well. For example: ```swift protocol Parent { func a() } protocol Child: Parent { func b() } @MainActor class Test: @preconcurrency Child { func a() { } func b() { } } ``` `Test` conformance to `Parent` implied by its conformance to `Child` should carry `@preconcurrency` and inject dynamic actor isolation checks to witness of `a()`. Resolves: https://github.com/apple/swift/issues/74294 Resolves: rdar://129599097