    PHP_OLD_FUNCTION 2158 gtags-parser/php.c 		case PHP_OLD_FUNCTION:
    PHP_OLD_FUNCTION  335 gtags-parser/php_res.h       {"old_function", PHP_OLD_FUNCTION},
    PHP_OLD_FUNCTION  369 gtags-parser/php_res.h       {"Old_function", PHP_OLD_FUNCTION},
    PHP_OLD_FUNCTION  418 gtags-parser/php_res.h       {"Old_Function", PHP_OLD_FUNCTION},
    PHP_OLD_FUNCTION  443 gtags-parser/php_res.h       {"OLD_FUNCTION", PHP_OLD_FUNCTION},