anchor.diff:  
   selector 
       : ('.' | '^.' | '?.' | '*.') memberName
  -    | '#' memberName
  +    | reflectedMember
  +    | (primaryFunctorStart) => primaryFunctor
       | arguments
       | elementSelector
  +    ;
  +
  +reflectedBase
  +    : '#' ( regularType | memberName )
  +    ;
  +    
  +reflectedMember
  +    : '#' memberName
       ;
   
   elementSelector
  
positive.code:     | 'null'
      | 'none'
      | inlineClassDeclaration
      | '#' ( regularType | memberName )
      ;
  
  enumeration
  
negative.code:     : regularType
      | memberName
      | literal
      | (primaryFunctorStart) => primaryFunctor
      | parExpression
      | enumeration
      | 'this' 
  