anchor.diff:  
   parameterName
       : LIDENTIFIER
  -    -> ^(ARG_NAME LIDENTIFIER)
  +    -> ^(PARAM_NAME LIDENTIFIER)
       ;
   
   namedArguments
  
positive.code:     FOR_CONTAINMENT;
      FOR_ITERATOR;
      FOR_STMT;
      FORMAL_PARAMETER;
      FORMAL_PARAMETER_LIST;
      IF_FALSE;
      IF_STMT;
      IF_TRUE;
  
negative.code: //Note that this is just a TODO in the spec
  extraFormalParameters
      : extraFormalParameter+
      -> ^(PARAM_LIST ^(PARAM extraFormalParameter)+)
      ;
  
  //special rule for syntactic predicates
  