// RUN: not %target-swift-frontend %s -parse // Distributed under the terms of the MIT license // Test case submitted to project by https://github.com/practicalswift (practicalswift) // Test case found by fuzzing enum b{ enum b{ class A{ protocol P{ extension{ { } var f { { } func u( } } } class A{} protocol A{ typealias e:e typealias f let t:f.c typealias e