Update charted to 0.4.8 and roll

packages/matcher/test/escape_test.dart

Index: packages/matcher/test/escape_test.dart
diff --git a/packages/matcher/test/escape_test.dart b/packages/matcher/test/escape_test.dart
index 35a18bcff0745c066125dd6be85a1a2b8ec09964..348afe0add89bf4790959c02996da31373b7015a 100644
--- a/packages/matcher/test/escape_test.dart
+++ b/packages/matcher/test/escape_test.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library matcher.escape_test;
-
 import 'package:matcher/src/util.dart';
 import 'package:test/test.dart';
 
@@ -20,7 +18,8 @@ void main() {
     _testEscaping('ASCII control character', '\x11', r'\x11');
     _testEscaping('delete', '\x7F', r'\x7F');
     _testEscaping('escape combos', r'\n', r'\\n');
-    _testEscaping('All characters',
+    _testEscaping(
+        'All characters',
         'A new line\nA charriage return\rA form feed\fA backspace\b'
         'A tab\tA vertical tab\vA slash\\A null byte\x00A control char\x1D'
         'A delete\x7F',
@@ -42,7 +41,7 @@ void _testEscaping(String name, String source, String target) {
     var escaped = escape(source);
     expect(escaped == target, isTrue,
         reason: "Expected escaped value: $target\n"
-        "  Actual escaped value: $escaped");
+            "  Actual escaped value: $escaped");
   });
 }