// 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

ss func f<e: d {
public class a {
func a<T : a {
func b: Hashable> : l) {
}
for c {
enum S<T) {
}
}
extension NSSet {
typealias b {
}
return S<Y> {
}
}
}).f = F>?
let d<1 {
}
init(a)
