// 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

struct S<T where h:a{class A{class B:A{var a{{struct Q{struct Q{{}class A{class B{struct S{let a{a
