%Error-UNSUPPORTED: t/t_class_unsup_bad.v:7:1: Unsupported: virtual interface
    7 | virtual interface vi_t vi;
      | ^~~~~~~
%Error-UNSUPPORTED: t/t_class_unsup_bad.v:8:1: Unsupported: virtual data type
    8 | virtual vi_t vi2;
      | ^~~~~~~
%Error-UNSUPPORTED: t/t_class_unsup_bad.v:14:26: Unsupported: class parameters
   14 |    localparam LOCPAR = 10;
      |                          ^
%Error-UNSUPPORTED: t/t_class_unsup_bad.v:27:4: Unsupported: pure virtual class method
   27 |    pure virtual function void func_pure_virtual;
      |    ^~~~
%Error: t/t_class_unsup_bad.v:29:24: Syntax error: 'const'/'rand'/'randc' not allowed before function/task declaration
   29 |    const function void func_const; endfunction
      |                        ^~~~~~~~~~
%Error-UNSUPPORTED: t/t_class_unsup_bad.v:30:4: Unsupported: extern class method prototype
   30 |    extern task exttask;
      |    ^~~~~~
%Error: Exiting due to