[Isolates] Merge 6700:7030 from bleeding_edge to isolates.

test/mjsunit/mjsunit.js

Index: test/mjsunit/mjsunit.js
===================================================================
--- test/mjsunit/mjsunit.js	(revision 7006)
+++ test/mjsunit/mjsunit.js	(working copy)
@@ -104,6 +104,13 @@
 }
 
 
+function assertSame(expected, found, name_opt) {
+  if (found !== expected) {
+    fail(expected, found, name_opt);
+  }
+}
+
+
 function assertEquals(expected, found, name_opt) {
   if (!deepEquals(found, expected)) {
     fail(expected, found, name_opt);