Update charted to 0.4.8 and roll

packages/quiver/test/async/collect_test.dart

Index: packages/quiver/test/async/collect_test.dart
diff --git a/packages/quiver/test/streams/collect_test.dart b/packages/quiver/test/async/collect_test.dart
similarity index 91%
rename from packages/quiver/test/streams/collect_test.dart
rename to packages/quiver/test/async/collect_test.dart
index a806fd86fe2624dcc0a86ffac93a035166555039..a2dc91f72bda826ad805f755952309078ee6b9ad 100644
--- a/packages/quiver/test/streams/collect_test.dart
+++ b/packages/quiver/test/async/collect_test.dart
@@ -12,13 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-library quiver.streams.collect_test;
+library quiver.async.collect_test;
 
 import 'dart:async';
 import 'dart:math';
 
 import 'package:test/test.dart';
-import 'package:quiver/streams.dart';
+import 'package:quiver/async.dart';
 
 main() {
   group('collect', () {
@@ -26,7 +26,7 @@ main() {
         () => collect([]).toList().then((events) => expect(events, isEmpty)));
 
     test('should produce events for future completions in input order', () {
-      var futures = new Iterable.generate(
+      var futures = new Iterable<Future>.generate(
           5, (int i) => i.isEven ? new Future.value(i) : new Future.error(i));
       var events = [];
       var done = new Completer();
@@ -39,7 +39,8 @@ main() {
       });
     });
 
-    test('should only advance iterator once '
+    test(
+        'should only advance iterator once '
         'event for previous future is sent', () {
       var eventCount = 0;
       var maxParallel = 0;