// 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
f() {
({})
}
f
e)
func f<g>() -> (g, g -> g) -> g {
d j d.i = {
}
{
g) {
h  }
}
protoco 0) {
}
let c = a
c()
class c {
func b((Any, c))(a: (Any, AnyObject))ing {
return { g in "\(with): \(g())" }
}
struct d<f : e, g: e where g.h == f.h> {
}
protocol e {
tyb
}
struct c<S: Sequence, T where Optional<T> == S.Iterator.Element>(xs : S)
