// 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
protocol A : d {
extension A {
}
var d = {
var b: A {
public var d>Bool) {
return {
}
}
protocol c == {
self.f = d) -> : a {
}
return S<S : AnyObject) -> U) {
}
}
struct e where g: d {
}
func a: C {
}
let t..d
}
print(false):
}
typealias d>(()
pu
