// 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

}class B<T where B :a{
class a{
var d {
{struct B<
{
struct B<T: :{
{
{
{
} }}class A:a{
var d{
{
