[mutter] (9 commits) Non-fast-forward update to branch wip/muktupavels/work-areas-v2

[Alberts Muktupāvels <muktupavels src gnome org>]

The branch 'wip/muktupavels/work-areas-v2' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  a2e1765... x11-display: add support for _NET_WORKAREAS_Dn

Commits added to the branch:

  76ee026... wayland/egl-stream: Cache texture snippet (*)
  fcfe90a... wayland: Replace manual GNode subsurface iteration with mac (*)
  60ebf19... shaped-texture: Minor clean up (*)
  3969285... shaped-texture: Make setting the same texture a no-op (*)
  fe7bece... wayland/surface-actor: Reset and sync subsurface state when (*)
  f0df07c... wayland/surface: Move shaped-texture synchronization to act (*)
  3e90070... tests/wayland: Test subsurface commits after parent was res (*)
  6d15231... wayland/actor-surface: Always consider unmapped actors not  (*)
  bc168c5... x11-display: add support for _NET_WORKAREAS_Dn

(*) This commit already existed in another branch; no separate mail sent