update V8 to TOT snapshot branch
diff --git a/test/mjsunit/object-get-own-property-names.js b/test/mjsunit/object-get-own-property-names.js
index f52cee2..33aa85e 100644
--- a/test/mjsunit/object-get-own-property-names.js
+++ b/test/mjsunit/object-get-own-property-names.js
@@ -57,6 +57,8 @@
 assertEquals(3, propertyNames.length);
 assertEquals("0", propertyNames[0]);
 assertEquals("1", propertyNames[1]);
+assertEquals("string", typeof propertyNames[0]);
+assertEquals("string", typeof propertyNames[1]);
 assertEquals("length", propertyNames[2]);
 
 // Check that no proto properties are returned.