Update charted to 0.4.8 and roll

packages/quiver/test/async/all_tests.dart

Index: packages/quiver/test/async/all_tests.dart
diff --git a/packages/quiver/test/async/all_tests.dart b/packages/quiver/test/async/all_tests.dart
index f615ff69eb7f26f5b09ecd54fdde4934c45541b6..aafec7f0598686b5157d06266750093ba464cdfe 100644
--- a/packages/quiver/test/async/all_tests.dart
+++ b/packages/quiver/test/async/all_tests.dart
@@ -14,20 +14,28 @@
 
 library quiver.async.all_tests;
 
+import 'collect_test.dart' as collect;
+import 'concat_test.dart' as concat;
 import 'countdown_timer_test.dart' as countdown_timer;
 import 'create_timer_test.dart' as create_timer;
+import 'enumerate_test.dart' as enumerate;
 import 'future_group_test.dart' as future_group;
 import 'future_stream_test.dart' as future_stream;
 import 'iteration_test.dart' as iteration;
 import 'metronome_test.dart' as metronome;
+import 'stream_buffer_test.dart' as stream_buffer;
 import 'stream_router_test.dart' as stream_router;
 
 main() {
+  collect.main();
+  concat.main();
   countdown_timer.main();
   create_timer.main();
+  enumerate.main();
   future_group.main();
   future_stream.main();
   metronome.main();
   iteration.main();
+  stream_buffer.main();
   stream_router.main();
 }