message: grammar tuning based on hdlConvertor
diff: @@ -2146,10 +2146,16 @@ disable_statement
  : DISABLE ( hierarchical_identifier | FORK ) SEMICOLUMN
  ;
  +
  conditional_statement :
  ( unique_priority )? IF OPEN_PARENS cond_predicate CLOSE_PARENS statement_or_null
  - ( ELSE IF OPEN_PARENS cond_predicate CLOSE_PARENS statement_or_null )*
  - ( ELSE statement_or_null )* ;
  + ( ELSE statement_or_null | {_input->LA(1) != ELSE}? );
  +
  +
  +//conditional_statement :
  +// ( unique_priority )? IF OPEN_PARENS cond_predicate CLOSE_PARENS statement_or_null
  +// ( ELSE IF OPEN_PARENS cond_predicate CLOSE_PARENS statement_or_null )*
  +// ( ELSE statement_or_null )* ;
  unique_priority
  : UNIQUE
  