RtlTree failed to recognize instance in some senarios

[zjzaaa2005]

The regex used in rtl.vim to match module-inst is ";\s*$", so the following code is not recognized.

mod_a u_a (
    ....
    ); // comment

mod_b u_b (
   ....
   );

mod_c u_c (/*autoinst*/
    ...
   // comment;
   ....
   );

The u_b is not recognized due to comment in last line of u_a. And the u_c is not recognized due to the comment with ";" which generated by autoinst function extracting from mod_c.v .