Description:
------------
I'm php user and move my php projects from 5.2.3 to 5.2.5. In this changing I've got some problems on function get_object_vars. And seeing the changelog (http://bugs.php.net/bug.php?id=40757) I've noted that have some changes on this function.

Reproduce code:
---------------
class Modelo {
 
  public function __construct() {
      echo "Construtor Teste:<br />";
      echo "<pre>";
          print_r(array_keys(get_object_vars($this)));
      echo "</pre>";
  }
}
class Teste extends Modelo {
    //Atributte
   private $atributo1;
    private $atributo2;

    public function setAtributo1($atributo1) {
        $this->atributo1 = $atributo1;
    }
    public function getAtributo1(){
        return $this->atributo1;
    }
    public function setAtributo2($atributo2) {
        $this->atributo2 = $atributo2;
    }
    public function getAtributo2(){
        return $this->atributo2;
    }
}
$objeto = new Teste();              

Expected result:
----------------
Array
(
   [0] => atributo1
   [1] => atributo2
)

Actual result:
--------------
Array
(
)