// 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

func f:P{
func a
class a<d{func g:a{
let:{
struct S{
protocol A{class d{
func f{
{
{
class a{
func a{{{
func f{a < {
{
}
let a{
struct B{{
}init{
let P{func a{
class b{
func f{{
a,
{
