// 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 b{struct S<T where g:a{class A{class
a{
class B{
class c:A{{}class c:BooleanType
