Update charted to 0.4.8 and roll

packages/code_transformers/lib/src/messages.dart

Index: packages/code_transformers/lib/src/messages.dart
diff --git a/packages/code_transformers/lib/src/messages.dart b/packages/code_transformers/lib/src/messages.dart
index a78969a3d8bbaf61dc4035891d9f7b16fafda440..c91fe3d055423aac664fcc17a9bd73421c0c2c6b 100644
--- a/packages/code_transformers/lib/src/messages.dart
+++ b/packages/code_transformers/lib/src/messages.dart
@@ -9,7 +9,9 @@ import 'package:code_transformers/messages/messages.dart';
 
 const NO_ABSOLUTE_PATHS = const MessageTemplate(
     const MessageId('code_transformers', 1),
-    'absolute paths not allowed: "%-url-%"', 'Absolute paths not allowed', '''
+    'absolute paths not allowed: "%-url-%"',
+    'Absolute paths not allowed',
+    '''
 The transformers processing your code were trying to resolve a URL and identify
 a file that they correspond to. Currently only relative paths can be resolved.
 ''');
@@ -19,7 +21,9 @@ const INVALID_URL_TO_OTHER_PACKAGE = const MessageTemplate(
     'Invalid URL to reach to another package: %-url-%. Path '
     'reaching to other packages must first reach up all the '
     'way to the %-prefix-% directory. For example, try changing the URL '
-    'to: %-fixedUrl-%', 'Invalid URL to reach another package', '''
+    'to: %-fixedUrl-%',
+    'Invalid URL to reach another package',
+    '''
 To reach an asset that belongs to another package, use `package:` URLs in
 Dart code, but in any other language (like HTML or CSS) use relative URLs that
 first go all the way to the `packages/` directory.
@@ -34,7 +38,8 @@ const INVALID_PREFIX_PATH = const MessageTemplate(
     const MessageId('code_transformers', 3),
     'incomplete %-prefix-%/ path. It should have at least 3 '
     'segments %-prefix-%/name/path_from_name\'s_%-folder-%_dir',
-    'Incomplete URL to asset in another package', '''
+    'Incomplete URL to asset in another package',
+    '''
 URLs that refer to assets in other packages need to explicitly mention the
 `packages/` directory. In the future this requirement might be removed, but for
 now you must use a canonical URL form for it.
@@ -50,7 +55,8 @@ See [issue 15797](http://dartbug.com/15797) and
 const UNSPECIFIED_FROM_IN_NON_LIB_ASSET = const MessageTemplate(
     const MessageId('code_transformers', 4),
     'Cannot create URI for %-id-% without specifying where to import it from.',
-    'Missing `from` argument.', '''
+    'Missing `from` argument.',
+    '''
 Assets outside of the lib folder can only be imported via relative URIs. Use
 the `from` argument in `assetIdToUri` to specify the location in the same
 package where you intend to import this asset from.
@@ -58,7 +64,8 @@ package where you intend to import this asset from.
 
 const IMPORT_FROM_DIFFERENT_PACKAGE = const MessageTemplate(
     const MessageId('code_transformers', 5),
-    'Not possible to import %-toId-% from %-fromId-%', 'Cannot import asset.',
+    'Not possible to import %-toId-% from %-fromId-%',
+    'Cannot import asset.',
     '''
 Assets outside of the lib folder can only be imported via relative URIs from
 assets in the same package. To import an asset from another package, you need to