[vala] (14 commits) Non-fast-forward update to branch wip/vapicheck

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/vapicheck' 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:

  727840a... WIP gio-2.0: Fix a few bindings errors
  c418c76... vapicheck: Run compile check on given vapi file
  9799d4d... vapicheck: convenient caller script

Commits added to the branch:

  105f1c3... codegen: Don't leak array memory after it was implicitly co (*)
  619b96f... codegen: Use g_boxed_free in free-wrapper for heap-allocate (*)
  7fbbbb9... vala: GLib.Value unboxing returns unowned value (*)
  4d02354... vala: Don't allow GLib.Value casting to nullable struct/sim (*)
  5328619... codegen: Don't leak GLib.Value when implicitly unboxing it (*)
  4683685... codegen: Use temp_ref_values list instead of patching the A (*)
  63551ac... codegen: Don't leak memory moving heap-allocated struct to  (*)
  1383402... codegen: Chain up to base struct destroy function (*)
  d9a849a... tests: Don't leak array if length is -1 (*)
  b1bf1e9... vala: Add Block.unreachable_exit and have it set accordingl (*)
  708c291... testrunner: Add "-Werror=return-stack-address" flag (*)
  d6f4e43... WIP gio-2.0: Fix a few bindings errors
  44f0e39... vapicheck: Run compile check on given vapi file
  17b3887... vapicheck: convenient caller script

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