Description:
------------
Initialising a static associative array using constants as keys will give an incorrectly ordered array. Apparently, elements with constant keys will always appear AFTER elements without constant keys.

Reproduce code:
---------------
<?php
define("FIRST_KEY", "a");
define("THIRD_KEY", "c");
                                                                                          
function test()
{
        static $arr = array(
                FIRST_KEY => "111",
                "b" => "222",
                THIRD_KEY => "333",
                "d" => "444"
        );
        print_r($arr);
}
                                                                                          
test();
?>


Expected result:
----------------
Array
(
    [a] => 111
    [b] => 222
    [c] => 333
    [d] => 444
)


Actual result:
--------------
Array
(
    [b] => 222
    [d] => 444
    [a] => 111
    [c] => 333
)