// 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 C{.C){var _=a{{}class c{enum b{let t{struct Q{struct A{class A{enum b{{}class a{class a{class A{protocol k{class A{var a{func g{func a{class c{class A{{}protocol k{class A{protocol a{{}class A{class A{func f{{struct S{func g{(_=0
