[mutter] (4 commits) Non-fast-forward update to branch tintou/annotation-additions

[Marge Bot <marge-bot src gnome org>]

The branch 'tintou/annotation-additions' 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:

  279eb69... cogl/context: Add transfer full annotation to destroy times
  f31aca8... cursor-tracker: Add missing annotation to meta_cursor_track
  c90fe87... mutter: Add missing nullable annotation when possible
  dec89a4... startup-notification: Specify the actual type in the "chang

Commits added to the branch:

  e4c8125... cogl/context: Add transfer full annotation to destroy times
  50c91bc... cursor-tracker: Add missing annotation to meta_cursor_track
  9132f98... mutter: Add missing nullable annotation when possible
  c2b8582... startup-notification: Specify the actual type in the "chang