[vala] Created tag 0.50.8

[Rico Tzschichholz <ricotz src gnome org>]

The signed tag '0.50.8' was created.

Tagger: Rico Tzschichholz <ricotz ubuntu com>
Date: 1619902308 +0200

    0.50.8

Changes since the last tag '0.50.7':

Rico Tzschichholz (14):
      parser: Minor semantic checks to improve error messages
      parser: Allow empty member-initializer and accept trailing comma
      parser: Include INTERR token in source_reference of parsed types
      vala: length-type of arrays must not be nullable
      codegen: Apply gconstpointer to gpointer cast to GenericType only
      codegen: Fix access to captured generics in async method of interfaces (2)
      codegen: Use if-clause for is_in_destructor() condition to be more clear
      tests: Extend "finally block execution" test to increase coverage
      tests: Add "generics reference transfer" test to increase coverage
      tests: Add more "DBus" tests to increase coverage
      codegen: Add missing "_return" label and "_inner_error*_" declaration in dtors
      vala: Report a warning for unhandled errors in destructors
      codegen: Don't use G_GNUC_INTERNAL on implicit type specific fields
      Release 0.50.8