// 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
let i{typealias F=Int{{extension{class D{let d{var b{class C{func f{{{{{{{{}{{{(({{{}{{{{{[{{}{{{{{{{{struct d{func a{a{class b{func g{protocol a{class g{{{}}func b{{}=f