Description:
------------
Overloading method __set does not work for private variables as the example "Example 19-20. overloading with __get, __set, __isset and __unset example" from http://us3.php.net/manual/en/language.oop5.overloading.php .
This is the same of bug #34893 (http://bugs.php.net/bug.php?id=34893) which claims to be fixed, but is not.

Reproduce code:
---------------
<?
        class bla{
                private $variavel;
                function bla(){
                }
                function __set($vn, $vv){
                        $this->$vn = $vv;
                }
        }

        $bla = new bla();
        $bla->variavel = 1;
        echo "bla->variavel=".$bla->variavel."\n";
?>

Expected result:
----------------
bla->variavel=1

Actual result:
--------------
Fatal error: Cannot access private property bla::$variavel in /devel/testes/private.php on line 14