// 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

struct B<T where f=B{
enum S{
struct B<T
var f=B{
func a{var b{
struct B{
class A{
class b{
func b{
{struct Q{let a{var a{
case
s{class A{var:
