// 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 a() -> {
typealias e = a() {
}
return "foo"
class c {
}
protocol a {
extension NSSet {
}
}
protocol A : b {
typealias b where
