[vala] (31 commits) Non-fast-forward update to branch wip/meson

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/meson' 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:

  ed6b401... meson: Add initial build support
  e8f48eb... WIP meson: Add tests
  657d0fb... WIP meson: Add vapi building
  c02aed0... WIP meson: Add internal-api-docs
  b7c5e35... WIP meson: Add meson-bootstrap.sh

Commits added to the branch:

  e3ba95e... Release 0.45.3 (*)
  74996a8... glib-2.0: add MappedFile.from_fd constructor (*)
  559df36... webkit2gtk-4.0: Fix WebContext.initialize_notification_perm (*)
  e10e708... posix: add *at() calls and related constants (*)
  b7d498c... posix: Fix return-value of mknod() and c-include for tcgets (*)
  7a2946a... vala: 'construct' is not supported in POSIX profile (*)
  babca64... vala: NoAccessorMethod checks require GOBJECT profile (*)
  ced7073... vala: Implicit GValue cast requires GOBJECT profile (*)
  7249c21... vala: Fix mixup of target_glib_major/minor in set_target_gl (*)
  f51d9df... girparser: Handle "function-macro" by skipping them (*)
  12cda9e... gstreamer: Update from 1.17.0+ git master (*)
  af65169... vapi: Update GIR-based bindings (*)
  5744eed... codegen: Use G_TYPE_CHECK_INSTANCE_CAST for comparisons wit (*)
  5ae0260... tests: Add GMutex and GRecMutex test to increase coverage (*)
  5fbe59e... codegen: Append line-break after G_DEFINE_AUTOPTR_CLEANUP_F (*)
  8f51ff7... codegen: Move private type-struct to type-definition sectio (*)
  a141537... x11: Fix return type of XInternAtoms and XGetAtomNames bind (*)
  768f7a2... codegen: Include required type-definition when casting from (*)
  87aabcb... vala: Support static methods in error-domains (*)
  920f916... glib-2.0: Add new symbols and deprecations from 2.62 (*)
  ca5d2b7... vapi: Update GIR-based bindings (*)
  da70858... valadoc: Install icons and doclets to API dependent folders (*)
  bacc6e6... Release 0.45.90 (*)
  6b1d19d... sqlite3: Bind sqlite3_expanded_sql() and sqlite3_normalised (*)
  08b151c... cairo: Add 1.16 symbols (*)
  f45924e... linux: Add more Input and update UserspaceInput bindings (*)
  a3449cf... meson: Add initial build support
  ac66188... WIP meson: Add tests
  5917f2f... WIP meson: Add vapi building
  7aa2646... WIP meson: Add internal-api-docs
  639883c... WIP meson: Add meson-bootstrap.sh

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