diff -r bbb498ccb4ac -r 26e3035cdffc src/ObjectVisitor.h
--- a/src/ObjectVisitor.h	Sat Dec 22 23:18:57 2012 -0800
+++ b/src/ObjectVisitor.h	Mon Dec 24 02:49:20 2012 -0800
@@ -142,7 +142,7 @@
     }
 
     size_t iterateArray(Array *array, ArrayMap *map) {
-        if (!map->type()->fixedLength() || map->type()->contained()->isTraceable())
+        if (!map->type()->hasInlineElements())
             visitField(array, Array::offsetOfElements());
         return array->objSize(map);
     }