Description:
------------
The class name in the "Cannot redeclare class ..." error message is lowercased and not the original one.

Reproduce code:
---------------
<?php
class Foo {}
class Foo {}
?>

Expected result:
----------------
Fatal error: Cannot redeclare class Foo in /home/sb/test.php on line 3

Actual result:
--------------
Fatal error: Cannot redeclare class foo in /home/sb/test.php on line 3