Update IDBDatabase interface

Author: falsandtru

baselines/webworker.generated.d.ts

@@ -309,7 +309,7 @@ interface IDBDatabase extends EventTarget {
     objectStoreNames: DOMStringList;
     onabort: (ev: Event) => any;
     onerror: (ev: Event) => any;
-    version: string;
+    version: number;
     close(): void;
     createObjectStore(name: string, optionalParameters?: IDBObjectStoreParameters): IDBObjectStore;
     deleteObjectStore(name: string): void;
@@ -990,4 +990,4 @@ declare function postMessage(data: any): void;
 declare var console: Console;
 declare function addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
 declare function addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;