// 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
func e<l {
enum e {
func p() { p
class A {
class func a() -> Self {
}
}
func b<T>(t: AnyObject.Type) -> T! {
}
func b<d-> d { class d:b class b
protocol A {
}
func f() {
}
func ^(d: e, Bool) -> Bool {g !(d)
}
protocol d {
f k  }
}
protocol n {
}
class o: n{  cla) u p).v.c()
k e.w == l> {
}
func p(c: Any, m: Any) -> (((Any, Any) -> Any) {
func f<o>() -> (o, o -> o) -> o {
o m o.j = {
o) {
return { -> T
class func a() -> String {
struct c {
static let d: String = {
b {A {
u) {
func g<T where T.E == F>(f: B<T>) {
func e(
class A {
class func a() -> String {
struct c {
static let d
