Move JSON-stringify webkit test to V8.

test/webkit/run-json-stringify.js

Index: test/webkit/run-json-stringify.js
diff --git a/test/mjsunit/harmony/regress/regress-crbug-346141.js b/test/webkit/run-json-stringify.js
similarity index 53%
copy from test/mjsunit/harmony/regress/regress-crbug-346141.js
copy to test/webkit/run-json-stringify.js
index 798b7704ec2cc0eb928966fdfe9f979d0fe51f94..b2fbdeb5e9172214e6f3efdeac9a73a98357254a 100644
--- a/test/mjsunit/harmony/regress/regress-crbug-346141.js
+++ b/test/webkit/run-json-stringify.js
@@ -2,10 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --harmony-symbols
-
-var s = Symbol()
-var o = {}
-o[s] = 2
-o[""] = 3
-Object.getOwnPropertySymbols(o)
+var nativeJSON = this.JSON;
+this.JSON = null;
+load("test/webkit/resources/json2-es5-compat.js");
+load("test/webkit/resources/JSON-stringify.js");