// 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

enum B {
class a {
struct S : Sequence> Self {
}
class func d<T, e {
struct c> : A> (n: c(T>)) -> S) {
}
var _ c()
func f.s