src/vs/platform/menubar/electron-main/menubar.ts/Menubar/createRoleMenuItem
class Menubar:	private createRoleMenuItem(label: string, commandId: string, role: any): MenuItem {
		const options: MenuItemConstructorOptions = {
			label: this.mnemonicLabel(label),
			role,
			enabled: true
		};

		return new MenuItem(this.withKeybinding(commandId, options));
	}