[gtk] (7 commits) Non-fast-forward update to branch wip/nielsdg/fix-gir-warnings

[Niels De Graef <nielsdg src gnome org>]

The branch 'wip/nielsdg/fix-gir-warnings' 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:

  bf1ff6c... Fix some GObject introspection annotations

Commits added to the branch:

  1e0c0c0... rendernodeparser: Parse cairo script (*)
  53f23f8... rendernodeparser: Handle empty Cairo nodes (*)
  b9dc13a... Merge branch 'cairo-script-interpreter' into 'master' (*)
  7a3ffec... docs: Fix build (*)
  22e0785... build: Make script interpreter optional (*)
  2eb0333... Add a testcase (*)
  df9aed6... Fix some GObject introspection annotations

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