[vala] (16 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:

  7ab8948... build: Add --enable-test-asan configure option
  c5c556e... coverage: Build gidl-bindings
  9324c6f... ci: Add .gitlab-ci.yml
  bcb41d7... ci: Add ubuntu:16.04 run with gcc
  879da54... ci: Add ubuntu:devel run with clang and address-sanitizer
  a758a97... ci: Add archlinux:latest run with gcc
  1a23a8e... ci: Pin archlinux before glibc bump
  952ac4c... ci: Add alpine:edge run with gcc
  fb6d1ee... ci: Always deploy
  22c0161... ci: Keep ubuntu-clang-asan logs

Commits added to the branch:

  51584fe... codegen: Include "string.h" for strcmp() (POSIX) (*)
  0c59d83... vala: Include "stdlib.h" for Enum.to_string() (POSIX) (*)
  108aa90... tests: Add more "unsupported creation method" tests to incr (*)
  5a210e5... vala: Set proper source_reference for implicit "this" and " (*)
  ad9c075... vala: Report error for invalid inner operand of unary expre (*)
  0d5f3ee... tests: Add some "unary expressions" tests to increase cover (*)
  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

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