// 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

func c{{
class b{struct B<T where h:d{class a{class A{struct c
class a{var:a{
var _=c{
