Merge pull request #5767 from practicalswift/swiftc-28509-allowoverwrite-e-haslvalueaccesskind-l-value-access-kind-has-already-been-set

[swiftc (134 vs. 5186)] Add crasher in swift::Expr::propagateLValueAccessKind

Author: practicalswift

validation-test/compiler_crashers/28509-allowoverwrite-e-haslvalueaccesskind-l-value-access-kind-has-already-been-set.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
+class d{lazy var f={_={