anchor.diff:  
   // Note: LRM is wrong, can't have ; here
   bind_directive
  -  : KW_BIND bind_target_scope (COLON bind_target_instance_list)? bind_instantiation
  +  : KW_BIND bind_target_scope COLON bind_target_instance_list bind_instantiation
     | KW_BIND bind_target_instance bind_instantiation
     ;
   
  
positive.code: 
  list_of_port_declarations
    : LPAREN port_declaration ( COMMA port_declaration )* RPAREN
    | LPAREN RPAREN
    ;
  
  port: port_expression?
    | DOT port_identifier LPAREN ( port_expression )? RPAREN
    ;
  
  
negative.code:   ;
  
  variable_decl_assignment
    : variable_identifier variable_dimension* (EQ (dynamic_array_new | expression))?
    | class_variable_identifier EQ class_new
    ;
  
  class_new
  