// 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 m<o>() {
    enum b {
        case k
    }
}
func n(k: () -> ()) {
}
class m {
    b _ = n() {
}
func j<s>() -> (s, s -> s) -> s {
   k h k.n = {
}
 {
   s) {
        s  }
}
protocol j {
}
class k: j{  class func n {}
protocol k {
}
func m
func m<b:m
