Description:
------------
If an error happens inside the loaded class, it dies silently with no display. That is horrible to debugging.

Reproduce code:
---------------
<?

echo foo

class Abc {}

?>

<?
// autoload.php
spl_autoload_register();
//require_once "abc.php"; // uncomment to show error
new Abc();
?>

Expected result:
----------------
Parse error: parse error, unexpected T_CLASS, expecting ',' or ';' in abc.php on line 5

Actual result:
--------------
nothing is displayed