zend_do_label    3644 Zend/zend_language_parser.c     { zend_do_label(&(yyvsp[(1) - (2)]) TSRMLS_CC); }
zend_do_label     279 Zend/zend_language_parser.y 	|	T_STRING ':' { zend_do_label(&$1 TSRMLS_CC); }