src/vs/editor/contrib/find/browser/findController.ts/FindController/constructor
class FindController:	constructor(
		editor: ICodeEditor,
		@IContextViewService private readonly _contextViewService: IContextViewService,
		@IContextKeyService _contextKeyService: IContextKeyService,
		@IKeybindingService private readonly _keybindingService: IKeybindingService,
		@IThemeService private readonly _themeService: IThemeService,
		@INotificationService private readonly _notificationService: INotificationService,
		@IStorageService _storageService: IStorageService,
		@IClipboardService clipboardService: IClipboardService,
	) {
		super(editor, _contextKeyService, _storageService, clipboardService);
		this._widget = null;
		this._findOptionsWidget = null;
	}