Description:
------------
When an array is directly accessed is accessed trough an overloaded class, it works just fine.

When you access it trough foreach, it triggers an error.

Reproduce code:
---------------
<?

  class OlClass {

    var $data;

    function OlClass() {

        $this->data = new StdClass();
        $this->data->arr = Array('a','b','c');
        overload('OlClass');

    }

    function __get($p,&$v) {

      $v = $this->data->$p;
      return true;

    }

  }

  $o = new OlClass;

  print_r($o->arr);

  foreach($o->arr as $value) echo($value);

?>

Expected result:
----------------
Array ( [0] => a [1] => b [2] => c )
abc

Actual result:
--------------
Array ( [0] => a [1] => b [2] => c )
Warning: Invalid argument supplied for foreach() in /home/evert/public_html/dev/sabretooth/s41/test/test4.php on line 28