// 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

map() {
}
struct D : a {
protocol A {
}
protocol a {
protocol P {
}
struct c
override func c<T: c = f: b>