// 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

class i
"1
struct S
{
class A {
{
}
1
struct B:Boolean w
}
}protocol A{
struct B<g:a