Update charted to 0.4.8 and roll

packages/matcher/lib/src/pretty_print.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.pretty_print;
-
 import 'description.dart';
 import 'interfaces.dart';
 import 'util.dart';
 
 /// Returns a pretty-printed representation of [object].
 ///
 /// If [maxLineLength] is passed, this will attempt to ensure that each line is
 /// no longer than [maxLineLength] characters long. This isn't guaranteed, since
 /// individual objects may have string representations that are too long, but
 /// most lines will be less than [maxLineLength] long.
@@ skipping 27 matching lines @@
       // If the printed string is short and doesn't contain a newline, print it
       // as a single line.
       var singleLine = "$type[${strings.join(', ')}]";
       if ((maxLineLength == null ||
               singleLine.length + indent <= maxLineLength) &&
           !singleLine.contains("\n")) {
         return singleLine;
       }
 
       // Otherwise, print each member on its own line.
-      return "$type[\n" + strings.map((string) {
-        return _indent(indent + 2) + string;
-      }).join(",\n") + "\n" + _indent(indent) + "]";
+      return "$type[\n" +
+          strings.map((string) {
+            return _indent(indent + 2) + string;
+          }).join(",\n") +
+          "\n" +
+          _indent(indent) +
+          "]";
     } else if (object is Map) {
       // Convert the contents of the map to string representations.
       var strings = object.keys.map((key) {
         return '${pp(key)}: ${pp(object[key])}';
       }).toList();
 
       // Truncate the list of strings if it's longer than [maxItems].
       if (maxItems != null && strings.length > maxItems) {
         strings.replaceRange(maxItems - 1, strings.length, ['...']);
       }
 
       // If the printed string is short and doesn't contain a newline, print it
       // as a single line.
       var singleLine = "{${strings.join(", ")}}";
       if ((maxLineLength == null ||
               singleLine.length + indent <= maxLineLength) &&
           !singleLine.contains("\n")) {
         return singleLine;
       }
 
       // Otherwise, print each key/value pair on its own line.
-      return "{\n" + strings.map((string) {
-        return _indent(indent + 2) + string;
-      }).join(",\n") + "\n" + _indent(indent) + "}";
+      return "{\n" +
+          strings.map((string) {
+            return _indent(indent + 2) + string;
+          }).join(",\n") +
+          "\n" +
+          _indent(indent) +
+          "}";
     } else if (object is String) {
       // Escape strings and print each line on its own line.
       var lines = object.split("\n");
       return "'" +
           lines.map(_escapeString).join("\\n'\n${_indent(indent + 2)}'") +
           "'";
     } else {
       var value = object.toString().replaceAll("\n", _indent(indent) + "\n");
       var defaultToString = value.startsWith("Instance of ");
 
@@ skipping 36 matching lines @@
     return "?";
   }
 }
 
 /// Returns [source] with any control characters replaced by their escape
 /// sequences.
 ///
 /// This doesn't add quotes to the string, but it does escape single quote
 /// characters so that single quotes can be applied externally.
 String _escapeString(String source) => escape(source).replaceAll("'", r"\'");