// 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

struct D : a {
protocol b {
extension NSSet {
}
class a {
protocol b {
switch x }
}
class A {
}
func a(mx : start, () -> V, Any, f: b) -> {
class b: String {
}
S) {
}
}
func c(() -> {
}
typealias d = {
}
typealias e : c {
[["
class A.c = T? {
}
}
let n1: Int>]