Merge pull request #4449 from practicalswift/swiftc-28399-getpointerelementtype-is-not-storagetype

[swiftc (52 vs. 5156)] Add crasher in swift::irgen::emitPolymorphicParameters(...)

Author: CodaFi

validation-test/compiler_crashers/28399-getpointerelementtype-is-not-storagetype.swift

@@ -0,0 +1,20 @@
+// 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 -emit-ir
+// REQUIRES: asserts
+protocol A{associatedtype B
+}
+struct C<T:A>{
+}
+protocol E{associatedtype F
+func g<T where F==T.B>(_:C<T>)
+}
+struct H:E{
+typealias F = Void
+func g<T where F==T.B>(_:C<T>){}
+}