Log Message:
vala: update to 0.42.3.

Vala 0.42.3
===========
 * Various improvements and bug fixes:
  - codegen:
    + Initialize internal temp-variables used as reference parameter
    + Improve ccode for fixed-length array parameters (#163)
    + Fix regex literal compile flags
    + Add prototype for *_register_type() function
    + Don't emit *_free() of derived compact classes
    + Add prototype for *_new() of abstact compact classes
  - girwriter: Fix ctype of out/ref and array parameters
  - ccode: Fix typo and actually check "end_decls" (#672)
  - abstract syntax tree:
    + Always analyze nodes after they are inserted into the AST
    + Add source_reference to local variable of catch-clause
    + Add missing replace_expression() implementations
    + Fix several construction/parenting issues
    + DataType for GLib.Error should be should resolved as ErrorType
  - libvaladoc: Add "unlock" to keywords in Highligher
  - posix:
    + Add replacement for G_(BEGIN|END)_DECLS
    + Don't check for GLib.Variant casting
  - testrunner: Reset $run_prefix before generating next test script
  - build: Unconditionally add conditional VALAFLAGS to make bootstrap
  - doc: Fix build of internal-api-docs
  - manual: Update from wiki.gnome.org

 * Bindings:
  - glib-2.0: Computing length once is enough in string.to_utf8()/splice()
  - glib-2.0: Add binding for g_test_add()
  - glib-2.0: Add array length to string.skip (#695)
  - gio-2.0: Result of DBusMessage.get_header() is unowned
  - gobject-2.0,gtk+-*.0: Fix some GLib.Value out/ref parameters
  - gstreamer: Update from 1.15+ git master
  - gtk+-4.0: Update to 3.94.0+b4b30b49

Vala 0.42.2
===========
 * Various improvements and bug fixes:
  - codewriter: Prepend "yield" if is_yield_expression is set on
    MethodCall and ObjectCreationExpression
  - codegen: Fix typo in is_pure_ccode_expression() [#673]
  - gobject-introspection: Fix use after free in scanner [#674]
  - vala: Check if ArrayType supports its given element-type in analyzer pass
  - valadoc: Fix some string escaping which gettext complains about

 * Bindings:
  - Update GIDL-based bindings to fix unsupported type-arguments
  - glib-2.0: Add feature_test_macro details for Time struct's methods
  - glib-2.0: Set DateTime.now () to use local time zone as the default
  - gstreamer: Update from 1.15+ git master
  - gtk+-4.0: Update to 3.94.0+d90e2733
  - libxml-2.0: Add missing context parameter in OutputWriteCallback
  - x11: Add binding for XCreateSimpleWindow

Vala 0.42.1
===========
 * Various improvements and bug fixes:
  - vapigen: Warn if the library argument doesn't match any package attribute
    [#669]

 * Bindings:
  - glib-2.0: Add some 2.58 symbols
  - gtk+-4.0: Update to 3.94.0+f3e6d00d
  - Add gnome-desktop-3.0 bindings [#668]
  - Remove libgda-4.0, libgda-report-4.0 bindings [#667]
  - Update GIR-based bindings