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-4271.js b/test/mjsunit/regress/regress-4271.js
new file mode 100644
index 0000000..bc18771
--- /dev/null
+++ b/test/mjsunit/regress/regress-4271.js
@@ -0,0 +1,24 @@
+// 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.
+
+if (this.Worker) {
+  // Throw rather than overflow internal field index
+  assertThrows(function() {
+    Worker.prototype.terminate();
+  });
+
+  assertThrows(function() {
+    Worker.prototype.getMessage();
+  });
+
+  assertThrows(function() {
+    Worker.prototype.postMessage({});
+  });
+
+  // Don't throw for real worker
+  var worker = new Worker('');
+  worker.getMessage();
+  worker.postMessage({});
+  worker.terminate();
+}