I would guess that this isn't supported in the Symfony  CS. And if they were they would probably have to be:

````
/**
 * @var \FooBar
 */
````

Which makes classes far too verbose and more difficult to read imo.

And at what point do we start allowing things like:

````php
/** @var Foobar */
$foobar = $someObject->getSomeOtherObject();
````

As some editors can pick that up (not sure how phpstorm functions there).

I can see that both are potentially useful, but neither are standard practice in the CMF, and I have never seen either in Symfony.