Merge tag 'win32-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

Merge tag 'win32-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

win32-related misc patches

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# gpg: Signature made Wed 12 Oct 2022 11:57:03 EDT
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* tag 'win32-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
  tests/unit: make test-io-channel-command work on win32
  io/command: implement support for win32
  io/command: use glib GSpawn, instead of open-coding fork/exec
  tests/channel-helper: set blocking in main thread
  util: make do_send_recv work with partial send/recv
  osdep: make readv_writev() work with partial read/write
  win32: set threads name

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>