Roll Observatory deps (charted -> ^0.3.0)

packages/smoke/lib/mirrors.dart

 // Copyright (c) 2014, 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.
 
 /// Implementation of the smoke services using mirrors.
 library smoke.mirrors;
 
 import 'dart:mirrors';
 import 'package:smoke/smoke.dart';
 import 'package:logging/logging.dart';
@@ skipping 204 matching lines @@
     // Interceptor is leaked by dart2js. It has the same methods as Object
     // (including noSuchMethod), and our code above assumes that it doesn't
     // exist. Most queries exclude Object, so they should exclude Interceptor
     // too. We don't check for t.simpleName == #Interceptor because depending on
     // dart2js optimizations it may be #Interceptor or #num/Interceptor.
     // Checking for a private library seems to reliably filter this out.
     if (t != null && t.owner != null && t.owner.isPrivate) {
       t = _objectType;
     }
     return t;
-  } on UnsupportedError catch (e) {
+  } on UnsupportedError catch (_) {
     // Note: dart2js throws UnsupportedError when the type is not reflectable.
     return _objectType;
   }
 }
 
 MethodMirror _findMethod(ClassMirror type, Symbol name) {
   do {
     var member = type.declarations[name];
     if (member is MethodMirror) return member;
     type = type.superclass;
@@ skipping 79 matching lines @@
   String toString() => (new StringBuffer()
     ..write('(mirror-based-declaration ')
     ..write(name)
     ..write(
         isField ? ' (field) ' : (isProperty ? ' (property) ' : ' (method) '))
     ..write(isFinal ? 'final ' : '')
     ..write(isStatic ? 'static ' : '')
     ..write(annotations)
     ..write(')')).toString();
 }