Description:
------------
When throwing an exception from a __set() method a strange fatal error is shown. I would expect to see the uncaught exception error. Even if I put a try/catch around the $impl = new impl() line the same error is thrown. It seems like you can not throw exceptions if __set() is used through the constructor.

Reproduce code:
---------------
<?php
abstract class abs
{
    private $properties = array();

    public function __set( $name, $value )
    {
        throw new Exception( "doesn't work" );
    }

    public function __get( $name )
    {
        throw new Exception( "doesn't work" );
    }
}

class impl extends abs
{
    public function __construct()
    {
        $this->counter++;
    }
}

$impl = new impl();
?>


Expected result:
----------------
The uncaught exception fatal error.

Actual result:
--------------
Fatal error: Couldn't execute method impl::__set in Unknown on line 0

Call Stack:
    2.6910     262144   1. {main}() /home/derick/-:0
    2.6911     262144   2. impl->__construct() /home/derick/-:25