IS_VISITED_CONSTANT  549 Zend/zend_execute_API.c #define IS_CONSTANT_VISITED(p)		(Z_TYPE_P(p) & IS_VISITED_CONSTANT)
IS_VISITED_CONSTANT  550 Zend/zend_execute_API.c #define MARK_CONSTANT_VISITED(p)	Z_TYPE_INFO_P(p) |= IS_VISITED_CONSTANT
IS_VISITED_CONSTANT  551 Zend/zend_execute_API.c #define RESET_CONSTANT_VISITED(p)	Z_TYPE_INFO_P(p) &= ~IS_VISITED_CONSTANT