[vala] Created tag 0.40.23

[Rico Tzschichholz <ricotz src gnome org>]

The signed tag '0.40.23' was created.

Tagger: Rico Tzschichholz <ricotz ubuntu com>
Date: 1589903580 +0200

    0.40.23

Changes since the last tag '0.40.22':

Rico Tzschichholz (10):
      gitignore: Update and add some IDE files
      vala: Allow node_reference being null in SemanticAnalyzer.get_instance_base_type()
      vala: SemanticAnalyzer.get_instance_base_type() is not allowed to return null
      vala: Set value_type of undefined member-access to avoid further criticals
      codegen: Correctly handle cast-expression of real struct to nullable struct
      vala: Transform cast from floating-type to boxed-type
      vala: Transform cast from integer-type to boxed-type
      codegen: Use loop index instead of get_ccode_pos() for ellipsis parameter
      girparser: Add support for boolean "new" argument for methods
      Release 0.40.23