| // This source file is part of the Swift.org open source project |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| |
| // REQUIRES: asserts |
| // RUN: not --crash %target-swift-frontend %s -emit-ir |
| protocol P{typealias a{}class a |
| {}typealias a{}class a |
| }{extension{class a:P |
| protocol A:A |
