Upgrade V8 to version 4.9.385.28

https://chromium.googlesource.com/v8/v8/+/4.9.385.28

FPIIM-449

Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/harmony/regress/regress-4482.js b/test/mjsunit/harmony/regress/regress-4482.js
new file mode 100644
index 0000000..bffca42
--- /dev/null
+++ b/test/mjsunit/harmony/regress/regress-4482.js
@@ -0,0 +1,9 @@
+// Copyright 2015 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.
+//
+// Flags: --harmony-sloppy --nolegacy-const
+
+assertEquals("function", (function f() { f = 42; return typeof f })());
+assertEquals("function",
+             (function* g() { g = 42; yield typeof g })().next().value);