// RUN: not %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

let g{{class a{func b{enum S{protocol a{enum S{class A{struct b{{}{}struct b{struct A{class a{func a{C{{c i{func i{class a{func a{let b={{func a{func b{F=e
