small note about interface registration

Guys/gal, At the risk of being boring, someone should probably know that the ZEND_ACC_INTERFACE flag isn't getting set for anything outside the Engine during zend_register_internal_interface(). zend_API.c needs to #include zend_compile.h to get it defined, unless you know a better way. SPL and Reflection don't use zend_register_internal_interface(), so they won't get theirs set from within ZE anyway (tho' they probably should). Note that this doesn't fix my PHP-GTK issue, it was just a side-query into global class table corruption :-( - Steph