anchor.diff:          )*
           '*/'
           ;
  +        
   ABSTRACTS
       : 'abstracts'
       ;
  
positive.code:     INTERFACE_DECL;
      INTERFACE_BODY;
      MEMBER_NAME;
      MEMBER_TYPE;
      METHOD_DECL;
      METATYPE_LIST;
      NAMED_ARG;
  
negative.code: //      definition for a method or getter which returns
  //      a parExpression, just like we do for Smalltalk
  //      style parameters below?
  methodDefinition
      : block | specifier? ';'!
      ;
  
  attributeDefinition
      : (specifier | initializer)? ';'!
      ;
      
  interfaceDeclaration
  