| Index: sdk/lib/_collection_dev/list.dart
|
| diff --git a/sdk/lib/_collection_dev/list.dart b/sdk/lib/_collection_dev/list.dart
|
| index 3266d6c0e713998a9a2a2da6ccb94d8117a995c8..f5db3bbc7f898f4bfcfb67ea840cdb258ffc6f8a 100644
|
| --- a/sdk/lib/_collection_dev/list.dart
|
| +++ b/sdk/lib/_collection_dev/list.dart
|
| @@ -83,7 +83,7 @@ abstract class FixedLengthListMixin<E> {
|
| * This mixin is intended to be mixed in on top of [ListMixin] on
|
| * unmodifiable lists.
|
| */
|
| -abstract class UnmodifiableListMixin<E> {
|
| +abstract class UnmodifiableListMixin<E> implements List<E> {
|
|
|
| void operator []=(int index, E value) {
|
| throw new UnsupportedError(
|
|
|