[vala] (29 commits) Non-fast-forward update to branch wip/libgtop-2.0

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/libgtop-2.0' 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:

  f6d6ee0... vapi: Add libgtop-2.0 bindings
  d5de915... WIP

Commits added to the branch:

  40fa349... parser: Restrict source_reference for catch/lock expression (*)
  3897555... parser: Don't include assigned value in source_reference of (*)
  ea50b08... parser: Exclude trailing semicolon from source_reference of (*)
  96b33d6... parser: Extend source_reference of initializer-list to cove (*)
  d792297... parser: Don't include initializer in src-ref of array-creat (*)
  1fc7ec4... parser: Don't include member-initializer in src-ref of obje (*)
  5c24e43... Release 0.44.0 (*)
  5c19009... gsignal: get_detail_cexpression/get_signal_name_cexpression (*)
  abbdfdd... tests: Extend "detailed signal" test to increase coverage (*)
  ed72aa2... gsignal: Use guint to represent flags-enum in custom GMarsh (*)
  a8d1c68... gsignal: Move disconnect error from signal-module to semant (*)
  371512e... tests: Extend "struct with delegate" test to increase cover (*)
  0d09b1d... tests: Add "method ccode return-type" test to increase cove (*)
  9199f6a... ccodegen: Use unsigned default value for flags-enum (*)
  2703619... vala: Allow assignment of 0U to enum types (*)
  2bd25b6... gio-2.0: SocketAddress.from_native() is a factory method no (*)
  ea77a74... Mark defined constructors of abstract classes as protected (*)
  fac2cec... parser: Implicit creation method of abstract classes must b (*)
  5a5da40... vte-2.90: Mark as deprecated, it was replaced by vte-2.91 (*)
  f3b5ce8... glib-2.0: Add string.validate_len() since 2.60 (*)
  a1f23d3... libvaladoc: Don't try to create a Content.ListItem when the (*)
  cbada43... libgvc: Some additions and ownership/return-type fixes (*)
  d571747... gstreamer: Update from 1.15.2+ git master (*)
  a6c1648... gtk4: Update to 3.94.0+f14d998c (*)
  499fdf7... vapi: Update GIR-based bindings (*)
  cc9ab83... Release 0.44.1 (*)
  c82af07... vapi: Add libgtop-2.0 bindings
  a17f442... WIP
  249a1f8... WIP

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