Pull request #1748: 无JIRA任务 补xtype

Merge in VISUAL/fineui from ~WINDY/fui:master to master

* commit '64a32a5aa126eaa6bebf056163eb1abe6b22a9b5':
  udpate
  无JIRA任务 补xtype

typescript/base/single/button/node/textnode.ts

@@ -1,6 +1,9 @@
 import { NodeButton } from "../button.node";
 
 export declare class TextNode extends NodeButton {
+
+    static xtype: string;
+
     setText(b: string): void;
 
     getText(): string;

typescript/core/utils/tree.ts

@@ -26,7 +26,7 @@ export declare class Node {
 
 export declare class Tree {
   root: Node;
-  addNode(node: Node, newNode: Node, index: number):void;
+  addNode(node: Node, newNode: Node, index?: number):void;
   isRoot(node: Node): boolean;
   getRoot(): Node;
   clear():void;