// 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

var b{var x={class A{class d{class C}var b{{func a{case c{func f{{func a{var:{protocol A{class d{class c{let a{let a{var b{class b{protocol A{class c{class A{func a{struct S{class C{func f{{a=a
