src/vs/workbench/contrib/notebook/browser/diff/notebookDiffEditor.ts/NotebookTextDiffEditor/_setViewModel
class NotebookTextDiffEditor:	private _setViewModel(viewModels: DiffElementViewModelBase[]) {
		this._diffElementViewModels = viewModels;
		this._list.splice(0, this._list.length, this._diffElementViewModels);
		if (this.isOverviewRulerEnabled()) {
			this._overviewRuler.updateViewModels(this._diffElementViewModels, this._eventDispatcher);
		}
	}