if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name),
HEK_FLAGS(canon_name),
HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) {
if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name),
HEK_FLAGS(canon_name),
HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) {