Merge pull request #3934 from practicalswift/swiftc-28382-swift-archetypebuilder-maptypeoutofcontext

[swiftc (38 vs. 5154)] Add crasher in swift::ArchetypeBuilder::mapTypeOutOfContext(...)

Author: practicalswift

validation-test/compiler_crashers/28382-swift-archetypebuilder-maptypeoutofcontext.swift

@@ -0,0 +1,15 @@
+// This source file is part of the Swift.org open source project
+// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See http://swift.org/LICENSE.txt for license information
+// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+
+// RUN: not --crash %target-swift-frontend %s -parse
+// REQUIRES: asserts
+var b{{
+}
+typealias e:A
+protocol A{
+typealias e:e:typealias F
+typealias e=F