src/vs/workbench/contrib/notebook/browser/contrib/cellStatusBar/statusBarProviders.ts/BuiltinCellStatusBarProviders/constructor
class BuiltinCellStatusBarProviders:	constructor(
		@IInstantiationService instantiationService: IInstantiationService,
		@INotebookCellStatusBarService notebookCellStatusBarService: INotebookCellStatusBarService) {
		super();

		const builtinProviders = [
			CellStatusBarLanguagePickerProvider,
		];
		builtinProviders.forEach(p => {
			this._register(notebookCellStatusBarService.registerCellStatusBarItemProvider(instantiationService.createInstance(p)));
		});
	}