// RUN: not --crash %target-swift-frontend %s -parse
// XFAIL: asan

// Distributed under the terms of the MIT license
// Test case submitted to project by https://github.com/practicalswift (practicalswift)
// Test case found by fuzzing

class b<T where T: A = 0] = nil
func a<Y> {
return b: SequenceType> Bool {
func b> Self {
() {
}
}