Description:
------------
class_alias() is not taken into account by type hints.

Test script:
---------------
<?php

class A
{
	function foo(A $param) {
	}

}

class_alias('A', 'AliasA');

eval(' 
	class B extends A
	{
		function foo(AliasA $param) {
		}

	}
');

Expected result:
----------------
no error

Actual result:
--------------
Strict Standards: Declaration of B::foo() should be compatible with that of A::foo()