%Error: t/t_var_dup_bad.v:17:11: Duplicate declaration of signal: 'a'
   reg    a;
          ^
        t/t_var_dup_bad.v:16:11: ... Location of original declaration
   reg    a;
          ^
%Error: t/t_var_dup_bad.v:20:12: Duplicate declaration of signal: 'l'
   integer l;
           ^
        t/t_var_dup_bad.v:19:12: ... Location of original declaration
   integer l;
           ^
%Error: t/t_var_dup_bad.v:23:12: Duplicate declaration of signal: 'b'
   bit     b;
           ^
        t/t_var_dup_bad.v:22:12: ... Location of original declaration
   bit     b;
           ^
%Error: t/t_var_dup_bad.v:26:11: Duplicate declaration of signal: 'o'
   output o;
          ^
        t/t_var_dup_bad.v:25:11: ... Location of original declaration
   output o;
          ^
%Error: t/t_var_dup_bad.v:29:11: Duplicate declaration of signal: 'i'
   input  i;
          ^
        t/t_var_dup_bad.v:28:11: ... Location of original declaration
   input  i;
          ^
%Error: t/t_var_dup_bad.v:32:11: Duplicate declaration of signal: 'oi'
   input  oi;
          ^~
        t/t_var_dup_bad.v:31:11: ... Location of original declaration
   output oi;
          ^~
%Error: t/t_var_dup_bad.v:39:15: Duplicate declaration of signal: 'org'
   output reg org;
              ^~~
        t/t_var_dup_bad.v:38:15: ... Location of original declaration
   output reg org;
              ^~~
%Error: t/t_var_dup_bad.v:66:11: Duplicate declaration of signal: 'bad_reout_port'
   output bad_reout_port;
          ^~~~~~~~~~~~~~
        t/t_var_dup_bad.v:64:11: ... Location of original declaration
   output bad_reout_port
          ^~~~~~~~~~~~~~
%Error: t/t_var_dup_bad.v:73:9: Duplicate declaration of signal: 'bad_rewire'
                              : ... note: ANSI ports must have type declared with the I/O (IEEE 1800-2017 23.2.2.2)
   wire bad_rewire;
        ^~~~~~~~~~
        t/t_var_dup_bad.v:70:16: ... Location of original declaration
  (output wire bad_rewire,
               ^~~~~~~~~~
%Error: t/t_var_dup_bad.v:74:9: Duplicate declaration of signal: 'bad_rereg'
   reg  bad_rereg;
        ^~~~~~~~~
        t/t_var_dup_bad.v:71:15: ... Location of original declaration
   output reg bad_rereg
              ^~~~~~~~~
%Error: t/t_var_dup_bad.v:13:7: Duplicate declaration of port: 'oi'
   i, oi
      ^~
        t/t_var_dup_bad.v:31:11: ... Location of original declaration
   output oi;
          ^~
%Error: t/t_var_dup_bad.v:50:4: Duplicate declaration of port: 'bad_duport'
   bad_duport
   ^~~~~~~~~~
        t/t_var_dup_bad.v:52:11: ... Location of original declaration
   output bad_duport;
          ^~~~~~~~~~
%Error: t/t_var_dup_bad.v:58:11: Duplicate declaration of port: 'bad_mixport'
   output bad_mixport
          ^~~~~~~~~~~
        t/t_var_dup_bad.v:58:11: ... Location of original declaration
   output bad_mixport
          ^~~~~~~~~~~
%Error: t/t_var_dup_bad.v:41:9: Can't find definition of variable: 'bad_duport'
   sub0 sub0(.*);
        ^~~~
%Error: t/t_var_dup_bad.v:41:9: Duplicate pin connection: 'bad_duport'
   sub0 sub0(.*);
        ^~~~
        t/t_var_dup_bad.v:41:9: ... Location of original pin connection
   sub0 sub0(.*);
        ^~~~
%Error: t/t_var_dup_bad.v:42:9: Can't find definition of variable: 'bad_mixport'
                              : ... Suggested alternative: 'bad_duport'
   sub1 sub1(.*);
        ^~~~
%Error: t/t_var_dup_bad.v:42:9: Duplicate pin connection: 'bad_mixport'
   sub1 sub1(.*);
        ^~~~
        t/t_var_dup_bad.v:42:9: ... Location of original pin connection
   sub1 sub1(.*);
        ^~~~
%Error: t/t_var_dup_bad.v:43:9: Can't find definition of variable: 'bad_reout_port'
                              : ... Suggested alternative: 'bad_duport'
   sub2 sub2(.*);
        ^~~~
%Error: t/t_var_dup_bad.v:44:9: Can't find definition of variable: 'bad_rewire'
   sub3 sub3(.*);
        ^~~~
%Error: t/t_var_dup_bad.v:44:9: Can't find definition of variable: 'bad_rereg'
                              : ... Suggested alternative: 'bad_rewire'
   sub3 sub3(.*);
        ^~~~
%Error: Exiting due to