// 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

extension String {
let a {
enum b : a {
protocol a {
protocol A {
typealias f : a {
}() -> : A>("
func a""A, V>
