// This source file is part of the Swift.org open source project
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors

// RUN: not %target-swift-frontend %s -parse
func f<r>() -> (r, r -> r) -> r {
   f r f.j = {
}
 {
   r) {
        s  }
}
protocol f {
   class func j()
}
class f: f{  class func j {}
protocol j {
    class func m()
}
class r: j {
    class func m() { }
}
(r() n j).p.m()
j=k n j=k
protocol r {
    class func q()
}
s m {
    m f: r.q
    func q() {
        f.q()
    }
(l, () -> ())
}
func f<l : o>(r: l)
