// 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 k<q {
    enum k {
        func j
        var _ = j
    }
}
class x  {
    s m
    func j(m)
}
struct j<u> : r {
    func j(j: j.n) {
    }
}
enum q<v> {   let k: v
    let u: v.l
}
protocol y {
    o= p>(r: m<v>)
}
struct D : y {
    s p = Int
    func y<v k r {
    s m
}
class y<D> {
    w <r:
func j<v x: v) {
    x.k()
}
func x(j: Int = a) {
}
let k = x
