28845-llvm-optional-swift-type-llvm-function-ref-llvm-optional-swift-type-swift-typeba.swift

// 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 --crash %target-swift-frontend %s -emit-ir
class a<a{extension{class a
let d=r protocol
protocol P{}func a{class a<a:A A
protocol A:a
class a=
[(_
class a=_
&==
a{