Merge pull request #3858 from zhengbli/fixWorkerType

Update ErrorEventHandler type in worker

Author: zhengbli

src/lib/webworker.generated.d.ts

@@ -806,7 +806,7 @@ interface EventListenerObject {
 declare type EventListenerOrEventListenerObject = EventListener | EventListenerObject;
 
 interface ErrorEventHandler {
-    (event: Event | string, source?: string, fileno?: number, columnNumber?: number): void;
+    (message: string, filename?: string, lineno?: number, colno?: number, error?:Error): void;
 }
 interface PositionCallback {
     (position: Position): void;