[vala] (3 commits) Non-fast-forward update to branch wip/gtkgir

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/gtkgir' 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:

  e637306... girparser: Avoid fatal handling of nameless unions
  d9c627e... gtk+-3.0: switch to GIR

Commits added to the branch:

  8c4641b... gtk+-3.0: Further syncing from g-i-generated binding (*)
  feb0741... girparser: Avoid fatal handling of nameless unions
  27a50e4... gtk+-3.0: switch to GIR

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