%Error: t/t_inst_2star_bad.v:11:17: Duplicate .* in an instance (IEEE 1800-2017 23.3.2)
   11 |    sub sub (.*, .*);
      |                 ^~
%Error: t/t_inst_2star_bad.v:13:13: Connect by position is illegal in .* connected instances (IEEE 1800-2017 23.3.2)
   13 |    sub sub (foo, .*);
      |             ^~~
%Error: Exiting due to