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/regress/regress-crbug-580934.js b/test/mjsunit/regress/regress-crbug-580934.js
new file mode 100644
index 0000000..02cbfca
--- /dev/null
+++ b/test/mjsunit/regress/regress-crbug-580934.js
@@ -0,0 +1,18 @@
+// 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.
+//
+// Flags: --min-preparse-length=0
+
+"use strict";
+{
+  let one = () => {
+    return "example.com";
+  };
+
+  let two = () => {
+    return one();
+  };
+
+  assertEquals("example.com", two());
+}