// This source file is part of the Swift.org open source project
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors

// RUN: not %target-swift-frontend %s -typecheck
// Distribu where D.C == E> {s func c() { }
func f<g>() -> (g, g -> g) -> g {
d j d.i = {
}
{
g) {
h  }
}
protocol f {
}
protocol A {
-func b<d>(a : d) -> c {  {}ol !(a)
}
}
func c<d {
enum c {
}
}
func a<T>() {
enum b {
}
}
func i(c: () -> ()) {
}
class a {
var _ = i() {
}
}
class a<f : b, g : b where f.d == g> {
}
protocol b {
}
struct c<h : b> : b {
typealias e = a<c<h>0) {
}
protocol a : a {
}
class a {
}
struct A<T> {
}
func f<g>() -> (g, g -> g) -> g {
d j d.i = {
}
{
g) {
}
}
ny, Any) -> Any) -> Any)) -> Any {
return z({
})
}
func prefix(with: String) -> <T>(() -> T return "\(with): \(g())" }
}
struct c<S: Sequence, T where Optional<T> == S.Iterator.Element>
