// 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 a{{struct Q{{}protocol a{class c{enum A{enum e{struct Q{struct Q{func c{enum b{func g{class A{class A{func e{func a{(_=F
