补充事件类型定义

typescript/base/single/button/button.basic.ts

@@ -41,6 +41,8 @@ export interface _BasicButtonStatic {
 }
 
 export declare class BasicButton extends Single {
+    static EVENT_CHANGE: string;
+
     _createShadow(): void;
 
     bindEvent(): void;

typescript/base/single/button/buttons/button.icon.ts

@@ -2,4 +2,5 @@ import { BasicButton } from "../button.basic";
 
 export declare class IconButton extends BasicButton {
     static xtype: string;
+    static EVENT_CHANGE: string;
 }

typescript/base/single/button/listitem/icontexticonitem.ts

@@ -2,4 +2,5 @@ import { BasicButton } from "../button.basic";
 
 export declare class IconTextIconItem extends BasicButton {
     static xtype: string;
+    static EVENT_CHANGE: string;
 }