[vala] (22 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:

  f3ffd95... build: Add --enable-test-asan configure option
  c0ff2d5... coverage: Build gidl-bindings
  70b4575... ci: Add .gitlab-ci.yml
  7a991aa... ci: Add ubuntu:16.04 run with gcc
  c0d6fa4... ci: Add ubuntu:devel run with clang and address-sanitizer
  85515a4... ci: Add archlinux:latest run with gcc
  84e9e05... ci: Pin archlinux before glibc bump
  6accb98... ci: Add alpine:edge run with gcc
  b98c440... ci: Always deploy
  3687aba... ci: Keep ubuntu-clang-asan logs

Commits added to the branch:

  af3c4ef... webkit2gtk-4.0: Update to 2.31.90 (*)
  e8e83ec... glib-2.0: Add new symbols from 2.68 (*)
  2a47828... vapi: Update GIR-based bindings (*)
  a33a144... Release 0.51.3 (*)
  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 (*)
  5bdba5c... build: Add --enable-test-asan configure option
  55bdb27... coverage: Build gidl-bindings
  62a7a1d... ci: Add .gitlab-ci.yml
  6c0629b... ci: Add ubuntu:16.04 run with gcc
  c0e53ab... ci: Add ubuntu:devel run with clang and address-sanitizer
  4ee6cc5... ci: Add archlinux:latest run with gcc
  c89c6b5... ci: Pin archlinux before glibc bump
  f703714... ci: Add alpine:edge run with gcc
  a9c8ff6... ci: Always deploy
  7abc868... ci: Keep ubuntu-clang-asan logs

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