[vala] (33 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:

  3ec8de7... coverage: Build gidl-bindings
  78b83f5... ci: Add .gitlab-ci.yml
  29f8d74... ci: Add ubuntu:16.04 run with gcc
  f0da389... ci: Add ubuntu:18.04 run with gcc
  70f3b36... ci: Add fedora:latest run with clang
  6734678... ci: Add archlinux/base:latest run with gcc
  ee0f33b... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  be4daec... ci: Always deploy

Commits added to the branch:

  a522301... vala: Use stable hash for methods in HashMap of implicit_im (*)
  2afaae5... parser: Use [Flags] for ModifierFlags (*)
  0d59dcc... Use "str_equal" as equal_func for ArrayList<string> instanc (*)
  2d6328d... vala: Set value_type of undefined member-access to avoid fu (*)
  c49d45a... codegen: Correctly handle cast-expression of real struct to (*)
  2ae1698... vala: Transform cast from floating-type to boxed-type (*)
  bb3c713... vala: Transform cast from integer-type to boxed-type (*)
  9ae4713... gtk4: Update to 3.98.3+386b36a6 (*)
  33e4ad0... codegen: Use loop index instead of get_ccode_pos() for elli (*)
  00bef7c... vala: Explicit "new" method may be incompatible with a poss (*)
  ccf7c15... girparser: Add support for boolean "new" argument for metho (*)
  8c60585... gtk4: Update to 3.98.3+028942c8 (*)
  32e369f... webkit2gtk-4.0: Update to 2.29.1 (*)
  24de57b... gstreamer: Update from 1.17.0+ git master (*)
  b76e60c... vapi: Update GIR-based bindings (*)
  a3e7970... Sync NEWS from 0.48 (*)
  481ca63... gtk+-3.0: Deprecated abstract methods are not required to b (*)
  f844ad1... glib-2.0: Map given end == 0 for string.slice/splice() to s (*)
  e66d219... Revert "glib-2.0: Map given end == 0 for string.slice/splic (*)
  18847c9... codegen: Dup arrays only if length > 0, this consistently r (*)
  6312d8c... tests: Extend "s[p]lice" tests to increase coverage (*)
  6edde4b... parser: Map empty start/end index to 0/length for slice exp (*)
  a2903dc... Revert "codegen: Dup arrays only if length > 0, this consis (*)
  4867976... codegen: Improve array-dup-wrapper for empty arrays (*)
  120f54f... vala: Improve source documentation (*)
  8efa262... coverage: Build gidl-bindings
  1114aea... ci: Add .gitlab-ci.yml
  30971e2... ci: Add ubuntu:16.04 run with gcc
  4a6a78a... ci: Add ubuntu:18.04 run with gcc
  14586e4... ci: Add fedora:latest run with clang
  573005f... ci: Add archlinux/base:latest run with gcc
  06c802a... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  1fdbf19... ci: Always deploy

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