RESULT_UNUSED      46 ext/opcache/Optimizer/zend_optimizer_internal.h # define RESULT_UNUSED(op)	((op->result_type & EXT_TYPE_UNUSED) != 0)
RESULT_UNUSED      51 ext/opcache/Optimizer/zend_optimizer_internal.h # define RESULT_UNUSED(op)	((op->result.op_type == IS_VAR) && (op->result.u.EA.type == EXT_TYPE_UNUSED))