[vala] (9 commits) Non-fast-forward update to branch wip/issue/838

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/issue/838' 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:

  a992fdc... codegen: Inline allocated arrays don't require checking for
  936faef... codegen: Don't append unreachable clean-up section of Block
  e2f188a... codegen: Don't cause double-free due append_local_free() in
  39f180a... codegen: Don't unconditionally add/return internal "result"
  89a2b2b... DO NOT PUSH tests: Use -Werror=unreachable-code

Commits added to the branch:

  6e38fba... tests: Add dedicated "property ownership" tests (*)
  e0ab9ae... girparser/gidlparser: "value_owned = true" by default for p (*)
  6afaf44... codewriter: Write "weak" modifier for properties (*)
  e8830f4... glib-2.0: Use 'GStatBuf' as ctype for 'Stat' (*)
  5b26f5d... glib-2.0: Fix MutexLocker binding (*)
  99d0f6f... glib-2.0: Add missing "DestroysInstance" attributes to Mute (*)
  8f3a0a0... codegen: Don't append unreachable clean-up section of Block
  668345f... codegen: Don't cause double-free due append_local_free() in
  8c9a783... codegen: Don't unconditionally add/return internal "result"

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