src/vs/platform/menubar/electron-main/menubarMainService.ts/MenubarMainService/installMenuBarAfterWindowOpen
class MenubarMainService:	private async installMenuBarAfterWindowOpen(): Promise<Menubar> {
		await this.lifecycleMainService.when(LifecycleMainPhase.AfterWindowOpen);

		return this.instantiationService.createInstance(Menubar);
	}