28799-swift-type-subst-swift-substitutionmap-const-swift-substoptions-const.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
protocol P{{}typealias e where f:A:protocol A:A}protocol A:P