%Error: t/t_var_ref_bad2.v:12: Assigning to const ref variable: 'bad_const_set'
                             : ... In instance t
      bad_const_set = 32'h4567;   
      ^~~~~~~~~~~~~
%Error: t/t_var_ref_bad2.v:22: Ref argument requires matching types; port 'int_ref' requires VAR 'int_ref' but connection is VARREF 'bad_non_int'.
                             : ... In instance t
      checkset2(bad_non_int);   
                ^~~~~~~~~~~
%Error: Exiting due to