[PATCH v7 0/2] MR5047: server, ntdll: Use 64 bit for unix thread id.

[Marc-Aurel Zent (＠mzent)]

This is in preparation for the mach thread id rework, which requires 64 bit there (and incidentally also stops truncating the FreeBSD one).

There wasn't any direct usage of `__int64` in the sever protocol before, so I added a new typedef and a new `dump_int64()` function (not sure if needed per se though).

--
  v7: ntdll: Remove unneeded FreeBSD codepath in get_unix_tid().
      server, ntdll: Use 64 bit for unix thread id.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/5047