// 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

let f = g<T.C<U : B<B == B, U>(true as String))
extension A {
}
protocol A {
func b(T>?
typealias A : b,
