[Bug c++/118760] [12/13/14/15 Regression] Alias template in dependent base used via injected-class-name incorrectly rejected

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118760

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Previously we returned 'id' here but no longer:

      if (template_keyword_p)
        {
          tree scope = (parser->scope ? parser->scope
                        : parser->context->object_type);
          if (scope && TYPE_P (scope)
              && (!CLASS_TYPE_P (scope)
                  || (check_dependency_p && dependent_scope_p (scope))))
            {
              /* We're optimizing away the call to cp_parser_lookup_name, but
                 we still need to do this.  */
              parser->object_scope = parser->context->object_type;
              parser->context->object_type = NULL_TREE;
              return identifier;
            }
        }