// 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

func a<T{
let a{
func a{
class B<d:T.B
var f{
let a{
class A{enum e{
class n{struct c{
let a{{
class A{func c{
class n{let a{
struct c{class C{
let:{class A{let a{
let i
