Merge pull request #3359 from practicalswift/swiftc-28346-swift-typebase-getdesugaredtype

Author: swift-ci

validation-test/compiler_crashers/28346-swift-typebase-getdesugaredtype.swift

@@ -0,0 +1,12 @@
+// 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
+struct A{struct B<T:A
+class B:A
+class A:B{
+init()