// 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

protocol A {
func f: A? {
return "
}
protocol b {
protocol a {
protocol a {
}
(T) {
protocol P {
enum A {
}
}
}
}
typealias B : B)
private class A {
}
class func ^(.
