// 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 Array {
func b.C> : B? = B
}
protocol d {
let c: A> Bool {
case c("
typealias A : A> T
