Add missing service-worker-mock trigger signatures (#38267)

These are undocumented, but they are needed to make some triggers useful.

types/service-worker-mock/index.d.ts

@@ -42,6 +42,10 @@ declare global {
      * Used to trigger active listeners.
      */
     function trigger(type: keyof ServiceWorkerGlobalScopeEventMap): Promise<void>;
+    function trigger(name: 'fetch', request: string | Request): Promise<void>;
+    function trigger(name: 'notificationclick' | 'notificationclose', args: Notification): Promise<void>;
+    function trigger(name: 'push', args: Partial<PushEvent>): Promise<void>;
+    function trigger(name: 'message', args: Partial<MessageEvent>): Promise<void>;
 
     /**
      * Used to generate a snapshot of the service worker internals.

types/service-worker-mock/service-worker-mock-tests.ts

@@ -8,6 +8,18 @@ trigger('install');
 mock.trigger('install');
 trigger('fetch');
 mock.trigger('fetch');
+trigger('fetch', 'https://example.com');
+mock.trigger('fetch', 'https://example.com');
+trigger('fetch', new Request('https://example.com'));
+mock.trigger('fetch', new Request('https://example.com'));
+trigger('notificationclick', new Notification('Hello!'));
+mock.trigger('notificationclick', new Notification('Hello!'));
+trigger('notificationclose', new Notification('Hello!'));
+mock.trigger('notificationclose', new Notification('Hello!'));
+trigger('push', { data: null });
+mock.trigger('push', { data: null });
+trigger('message', { source: null });
+mock.trigger('message', { source: null });
 
 const emitFetch = listeners.get('fetch') as EventListener;
 emitFetch(new Event('fetch'));