anchor.diff:         RangeHigh:ansistring;
          HasRange:boolean;
   
  +       PrefilterRootNode:TFLREPrefilterNode;
  +       HasPrefilter:boolean;
  +
          function NewNode(const NodeType:longint;const Left,Right,Extra:PFLRENode;const Value:longint):PFLRENode;
          procedure FreeNode(var Node:PFLRENode);
   
  
positive.code: 
       TFLREInstructionGenerations=array of int64;
  
       TFLREThreadLocalStorageInstance=class
        private
         AllNext:TFLREThreadLocalStorageInstance;
  
negative.code:  
   RangeLow:='';
   RangeHigh:='';
  
   PrefilterRootNode.Free;
  
   inherited Destroy;
  end;
  