Description:
------------
In PHP4 and first PHP5 betas you could ask a parent method form a object with the following syntax : parent::method(). It was possible to use parent:: or PARENT::
Use of caps is important as it make possible to better distinguish the keyword from a classname

In the last betas (tested in php-5.0.0b3 and php5-200401031230) PARENT:: in caps output an error (Fatal error:  Class 'PARENT' not found). Same error comes with SELF:: in caps (while parent:: and self:: are OK)

Reproduce code:
---------------
<?php
class foo {
 function min() { echo "parent::method OK" ; }
 function maj() { echo "PARENT::method OK" ; }
}
class bar extends foo {
 function min() { parent::min() ; }
 function maj() { PARENT::maj() ; }
}

$obj = new bar ;
$obj->min() ; // ok in PHP4 and last PHP5
echo "\n" ;
$obj->maj() ; // error on last PHP5 snaps

Expected result:
----------------
parent::method OK
PARENT::method OK

Actual result:
--------------
parent::method OK
<br />
<b>Fatal error</b>:  Class 'PARENT' not found in <b>-</b> on line <b>8</b><br />