Merge pull request swiftlang#1278 from practicalswift/swiftc-28253-swift-constraints-constraintsystem-matchdeepequalitytypes

[swiftc] Add test case for crash triggered in swift::constraints::ConstraintSystem::matchDeepEqualityTypes(…)

Author: lattner

validation-test/compiler_crashers/28253-swift-constraints-constraintsystem-matchdeepequalitytypes.swift

@@ -0,0 +1,14 @@
+// RUN: not --crash %target-swift-frontend %s -parse
+// REQUIRES: asserts
+
+// Distributed under the terms of the MIT license
+// Test case submitted to project by https://github.com/practicalswift (practicalswift)
+// Test case found by fuzzing
+
+class A{let h=B<
+protocol A{
+extension{
+struct A{
+var b={}
+class A:b{
+protocol C{func<