Update charted to 0.4.8 and roll

packages/intl/test/intl_test.dart

Index: packages/intl/test/intl_test.dart
diff --git a/packages/intl/test/intl_test.dart b/packages/intl/test/intl_test.dart
index 268d765bfb565bf64e9ad202e85fdcb063b058ea..e19ed5ade89f4d58d40b42f6a8c3151d124671f6 100644
--- a/packages/intl/test/intl_test.dart
+++ b/packages/intl/test/intl_test.dart
@@ -5,7 +5,7 @@
 library intl_test;
 
 import 'package:intl/intl.dart';
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 import 'package:intl/date_symbol_data_local.dart';
 
 main() {
@@ -78,4 +78,17 @@ main() {
     checkAsDateDefault('en-ZZ', 'en');
     checkAsDateDefault('es-999', 'es');
   });
+
+  test("toBeginningOfSentenceCase", () {
+    expect(toBeginningOfSentenceCase(null), null);
+    expect(toBeginningOfSentenceCase(""), "");
+    expect(toBeginningOfSentenceCase("A"), "A");
+    expect(toBeginningOfSentenceCase("a"), "A");
+    expect(toBeginningOfSentenceCase("abc"), "Abc");
+    expect(toBeginningOfSentenceCase("[a]"), "[a]");
+    expect(toBeginningOfSentenceCase("ABc"), "ABc");
+    expect(toBeginningOfSentenceCase("ı"), "I");
+    expect(toBeginningOfSentenceCase("i"), "I");
+    expect(toBeginningOfSentenceCase("i", "tr"), "\u0130");
+  });
 }