| // 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 |
| |
| // RUN: not %target-swift-frontend %s -emit-ir |
| protocol A:RangeReplaceableCollection&(t:A{extension{}a e:class a{}class a |
| {{}lass a=_{case.a<a =nil??as?= |
| :a<a |
| ?as?= |
