[vala] (10 commits) Non-fast-forward update to branch wip/issue/160

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/issue/160' 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:

  252efaa... codegen: "_first_array" parameter for params-array is varia
  d90cbe0... vala: Support variadic delegates including params array

Commits added to the branch:

  a827cd7... girparser: Reuse populated Node.gtype_struct_for instead of (*)
  0f81123... Regenerate GIR-based bindings to pick up missing type_cname (*)
  33146ca... codegen: More use of get_ccode_type_name() (*)
  70abd95... vala: Report warning if --target-glib=auto was not evaluate (*)
  111d17e... vala: Fix build with valac < 0.44 (*)
  ac1e52d... tests: Add some tests to increase coverage (*)
  703012e... tests: Add "target-glib=auto" tests to increase coverage (*)
  00596a1... tests: Extend "pre-post increment" test to increase coverag (*)
  08445b3... codegen: "_first_array" parameter for params-array is varia (*)
  bfabe9e... vala: Support variadic delegates including params array

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