// 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

enum S<T where T:a
{
struct E{class a<T
func b{a{{{{}{class a
{func e{{
{}
{}
{a e={b{
class A{let a{w{{l A}}}}}
{
