src/vs/editor/common/model/textModel.ts/TextModel/_validateEditOperation
class TextModel:	private _validateEditOperation(rawOperation: model.IIdentifiedSingleEditOperation): model.ValidAnnotatedEditOperation {
		if (rawOperation instanceof model.ValidAnnotatedEditOperation) {
			return rawOperation;
		}
		return new model.ValidAnnotatedEditOperation(
			rawOperation.identifier || null,
			this.validateRange(rawOperation.range),
			rawOperation.text,
			rawOperation.forceMoveMarkers || false,
			rawOperation.isAutoWhitespaceEdit || false,
			rawOperation._isTracked || false
		);
	}