// 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
{class B:Collection
a{
struct S{
class A{class b{
enum B:A
}}}}class B{
struct S{
{
{
}{}}
enum E<T where B:a{struct B{{}struct B<g{class B{class d{var _=B