// 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

class C<T where f:P{struct S<B{
struct c
let a=a{
}{struct a{
enum A{var _=(var b{var d=c
