Merge pull request #53 from MichaelRFairhurst/void-fixes

Changes for landing dart-lang/sdk#32161

Author: MichaelRFairhurst

CHANGELOG.md

@@ -62,6 +62,10 @@ Revert considered deprecated to be notified of `length`, `isEmpty` and
 * Removed `Observable{List|Map}.NONE` (not Dart2 compatible).
 * Fix issue with type in `ObservableList._notifyListChange`. cl/182284033
 
+## 0.21.0+1-dev
+
+* Updated one of observable's tests to comply with dart 2 voidness semantics
+
 ## 0.20.4+3
 
 * Support the latest release of `pkg/quiver` (0.27).

pubspec.yaml

@@ -1,5 +1,5 @@
 name: observable
-version: 0.21.0
+version: 0.21.0+1-dev
 author: Dart Team <[email protected]>
 description: Support for marking objects as observable
 homepage: https://github.com/dart-lang/observable

test/observable_test.dart

@@ -9,7 +9,7 @@ import 'package:test/test.dart';
 
 import 'observable_test_utils.dart';
 
-main() => observableTests();
+void main() => observableTests();
 
 void observableTests() {
   // Track the subscriptions so we can clean them up in tearDown.