How to tell PhpStorm about implementation details? (magic methods) - phpstorm

Question

I have an object "User" that has attributes whose accessability is declared as protected but which can be set directly via a magic __set-method.
Now PhpStorm signals this apparent inconsistency with a big red column on the right side.
Is it possible to explain to PhpStorm what is going on so this is not shown as an error any more?
EDIT :
I use PhpStorm 2.1.4
okay here is some code that exemplifies the issue (together with the so far suggested workaround from Alexey which sadly doesn't do it for me):
c.php:
<?php
/**
* #property mixed $a
*/
class c1
{
protected $a;
public function __construct() { $this->a = __CLASS__; }
public function __get($n) { return $this->{$n}; }
}
/**
* #property $a mixed
*/
class c2
{
protected $a;
public function __construct() { $this->a = __CLASS__; }
public function __get($n) { return $this->{$n}; }
}
test.php
<?php
require "c.php";
$c1 = new c1();
var_dump($c1->a);
$c2 = new c2();
var_dump($c2->a);
and the output:
string 'c1' (length=2)
string 'c2' (length=2)
and how it looks like in PhpStorm:
my goal:
either having PhpStorm "understand" the design or just getting rid of those annoying red marks everywhere while not impairing the error detection apart from this issue.

Answer 1

This is now working in PHPStorm 3 :)
Unfortunately this is a open request in our tracker, see
http://youtrack.jetbrains.net/issue/WI-4468
The only way to avoid this warnings now, is to add #property to $user's class declaration. i.e.
/**
* #property $name string
*/
class User {
protected $name;
}
$user = new User();
$user->name = "me";