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

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/ci' 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:

  fd01161... coverage: Build gidl-bindings
  c580e9b... ci: Add .gitlab-ci.yml
  bc2b738... ci: Add ubuntu:16.04 run with gcc
  0ae8a1a... ci: Add ubuntu:18.04 run with gcc
  56f83d9... ci: Add fedora:latest run with clang
  67d8399... ci: Add archlinux/base:latest run with gcc
  c3bf703... ci: Always deploy

Commits added to the branch:

  91661e2... tests: Add "default-handler with base-access" signal test t (*)
  0aace7b... codegen: Use G_TYPE_INSTANCE_GET_INTERFACE to get vtable fo (*)
  128b23c... coverage: Build gidl-bindings
  9b3018c... ci: Add .gitlab-ci.yml
  96ba1f0... ci: Add ubuntu:16.04 run with gcc
  d8e8180... ci: Add ubuntu:18.04 run with gcc
  9252d99... ci: Add fedora:latest run with clang
  19de465... ci: Add archlinux/base:latest run with gcc
  f73ecd8... ci: Always deploy

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