Description:
------------
If I turn on E_STRICT, I get a strict notice depending on class
position. The notice is as following:

Strict standards: Declaration of ... should be compatible with that of
...

Maybe this notice is correct, but if I switch the classes in my code
without changing their content, this notice is gone. Exactly here is the bug.

In example A and B the method someFunc() of child class is not compatible with that of parent class. But only in example A occurs an error (Strict standards... see above)

Reproduce code:
---------------
<?php
error_reporting(E_ALL | E_STRICT);

/**
 * Example A: error occurs
 */
class Child_A extends Parent_A
{
    public function someFunc($param) {}
}
class Parent_A
{
    public function someFunc() {}
}

$child = new Child_A();


/**
 * Example B: no error occurs
 */
class Parent_B
{
    public function someFunc() {}
}
class Child_B extends Parent_B
{
    public function someFunc($param) {}
}

$child = new Child_B();

Expected result:
----------------
Either both examples (A and B ) should trigger an error or no one of them.

Parent classes should be parsed before child classes which extends parent classes.

Actual result:
--------------
Code example A triggers an error:

Strict Standards: Declaration of Child_A::someFunc() should be compatible with that of Parent_A::someFunc() in E:\...\class_extending_test.php on line 7