Description:
------------
This might be a 'feature request', a bug or just a documentation issue..

We can use the instanceof operator using variables:
i.e.
$objectType = 'StdClass'
$this instanceof $objectType

works flawlessly!

But in order to prevent introducing a variable needed just because of the check 
i would have guessed i could be able to do:

$this instanceof get_class($this)

(ofcourse the actual usage would be something else, this is just to illustrate 
the usage of a function to retrieve some type of class name)


Test script:
---------------
class Foo {
	function getClass() {
		return __CLASS__;
	}
}

$bar = new Foo();

var_dump($bar instanceof $bar->getClass());
exit;

Expected result:
----------------
true

Actual result:
--------------
Parse error: syntax error, unexpected '('