// 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

protocol A
class B<T where T:b{class B<T{
enum e
struct B
{{{
}
}let a=A{{}}{
var f=e
