// RUN: not %target-swift-frontend %s -parse
// REQUIRES: asserts

// 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 {
protocol a {
typealias B : b> String {
return { self.R
protocol A {
}))
}
}
func b
}
}
var e(true as a: St
