Merge pull request #5755 from practicalswift/swiftc-28503-iscomplete-missing-inherited-mapping-in-conformance

[swiftc (130 vs. 5184)] Add crasher in swift::ProtocolConformance::operator

Author: practicalswift

validation-test/compiler_crashers/28503-iscomplete-missing-inherited-mapping-in-conformance.swift

@@ -0,0 +1,10 @@
+// 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
+Slice.0