prog: TestIsComplexPtr fails when run without -short

[a-nogikh]

any_test.go:65: generated too few complex types: 1060/1611

Mostly it failed to generate the autogenerated types, e.g.

        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, fw_policy$auto_cls_fw]
        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, nft_bitwise_policy$auto_nft_bitwise]
        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, nft_match_policy$auto_nft_compat]
        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, dcbnl_bcn_nest$auto_dcbnl]
        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, devlink_dl_port_function_nl_policy$auto_netlink_gen]
        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, ifa_phonet_policy$auto_pn_netlink]
        any_test.go:61: did not generate netlink_msg_t[autogenerated_netlink, genlmsghdr, vni_filter_policy$auto_vxlan_vnifilter]

Cc @dvyukov

[dvyukov]

These types are effectively unused, we only reference then in the sendmsg$autorun syscall only to prevent unused warnings. It references dozens on policies, so there is no chance to generate them all in 10 attempts.

I think the proper fix is to not generate these unused policies (for now, while they are not used for real).
A hacky fix is to not test auto-generated ones, or special case sendmsg$autorun or auto_union.

[a-nogikh]

@pimyn-girgis do we actually still need sendmsg$autorun?

[pimyn-girgis]

I think the proper fix is to not generate these unused policies (for now, while they are not used for real).

do we actually still need sendmsg$autorun?

The only benefit in keeping unused policies is that it makes it more obvious how syz-declextract descriptions change over time, and might help in catching bugs between different versions. Other than that, I do not see any need to keep them.