// RUN: not --crash %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

import Foundation
protocol b {
protocol a {
typealias d: d where T> String) -> {
struct S(x() -> String = [$0)")
}
}
private let start = b<T ->