Update charted to 0.4.8 and roll

packages/quiver_iterables/test/cycle_test.dart

-// Copyright 2013 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-library quiver.iterables.cycle_test;
-
-import 'package:test/test.dart';
-import 'package:quiver_iterables/iterables.dart';
-
-main() {
-  group('cycle', () {
-    test("should create an empty iterable given an empty iterable", () {
-      expect(cycle([]), []);
-      expect(cycle([]).isEmpty, true);
-      expect(cycle([]).isNotEmpty, false);
-    });
-
-    test("should cycle its argument", () {
-      expect(cycle([1, 2, 3]).take(7), [1, 2, 3, 1, 2, 3, 1]);
-      expect(cycle([1, 2, 3]).isEmpty, false);
-      expect(cycle([1, 2, 3]).isNotEmpty, true);
-    });
-  });
-}