swift

a3e03fae - [Type checker] Make sure 'dynamic' gets set consistently.

[Type checker] Make sure 'dynamic' gets set consistently. 'dynamic' is inherited and only applies to '@objc' entities. The SourceKit test change is because we've changed our behavior slightly: we won't infer @objc from an override unless the override is correctly marked with 'override'. This is part of breaking up dependencies, and should have little effect outside of tests.