Description:
------------
Creating an object from an empty value on overloaded element leaks.

Reproduce code:
---------------
<?php
class foo implements ArrayAccess {
        private $array;
        public function offsetSet($key, $value) {
                $this->array[$key] = $value;
        }
        public function offsetGet($key) {
                return $this->array[$key];
        }
        public function offsetExists($key) {}
        public function offsetUnset($key) {}
}
$foo = new foo;

$foo["bar"] = array();
$foo["bar"][0]->std = "foo";



Actual result:
--------------
Notice: Indirect modification of overloaded element of foo has no effect in /usr/home/bjori/test/memleak.php on line 16

Strict Standards: Creating default object from empty value in /usr/home/bjori/test/memleak.php on line 16
[Tue Apr 17 14:02:54 2007]  Script:  'memleak.php'
/usr/src/php/5.2/Zend/zend_execute.c(441) :  Freeing 0x0850535C (16 bytes), script=memleak.php
=== Total 1 memory leaks detected ===