Add experimental, non-snapshotted V8 extras

test/cctest/test-experimental-extra.js

Index: test/cctest/test-experimental-extra.js
diff --git a/test/cctest/test-extra.js b/test/cctest/test-experimental-extra.js
similarity index 64%
copy from test/cctest/test-extra.js
copy to test/cctest/test-experimental-extra.js
index f943ea6c4e5adedb79b2c44213cdcf6a8ba56c60..a29fc7688cfbd06b89821b59492db3bb564e1e75 100644
--- a/test/cctest/test-extra.js
+++ b/test/cctest/test-experimental-extra.js
@@ -4,11 +4,11 @@
 
 (function (global, binding) {
   'use strict';
-  binding.testExtraShouldReturnFive = function () {
-    return 5;
+  binding.testExperimentalExtraShouldReturnTen = function () {
+    return 10;
   };
 
-  binding.testExtraShouldCallToRuntime = function() {
+  binding.testExperimentalExtraShouldCallToRuntime = function() {
     return binding.runtime(3);
   };
 })