[vala] (3 commits) Non-fast-forward update to branch wip/issue/871

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/issue/871' 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:

  03c9783... codegen: Set generic-type properties in Object.constructor(

Commits added to the branch:

  8a8db31... girwriter: Add readable="0"/private="1" attribute to type-s (*)
  7cb3a3f... girwriter: Fix position of priv field (--abi-stability) (*)
  cac2096... codegen: Set generic-type properties in Object.constructor(

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