Merge V8 5.2.361.47  DO NOT MERGE

https://chromium.googlesource.com/v8/v8/+/5.2.361.47

FPIIM-449

Change-Id: Ibec421b85a9b88cb3a432ada642e469fe7e78346
(cherry picked from commit bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8)
diff --git a/test/mjsunit/regress/regress-object-assign-deprecated-2.js b/test/mjsunit/regress/regress-object-assign-deprecated-2.js
new file mode 100644
index 0000000..89693de
--- /dev/null
+++ b/test/mjsunit/regress/regress-object-assign-deprecated-2.js
@@ -0,0 +1,8 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var x = {a:1, b:2};
+Object.defineProperty(x, "c", {set(v) {}})
+var y = {get c() { return {a:1, b:2.5} }};
+Object.assign(x, y, x);