| // RUN: %target-swift-frontend -typecheck %s -import-objc-header %S/Inputs/typedef-with-generic-param.h 2>&1 | |
| // REQUIRES: OS=macosx | |
| typealias Handler<T> = (T?, Error?) -> Void | |
| func foo<T>(_ handler: Handler<T>?) {} | |
| let _ = Foo<AnyObject>(completionBlock: foo) |