// RUN: not --crash %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{class b{struct a{struct B<S where f=A{class B<b{enum S{class A{}enum A{}struct A{enum S<T{{}struct B{var _=A<T b
