fix toString calls on Type objects in smoke

pkg/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 16 matching lines @@
   read(Object object, Symbol name) => reflect(object).getField(name).reflectee;
 
   void write(Object object, Symbol name, value) {
     reflect(object).setField(name, value);
   }
 
   invoke(receiver, Symbol methodName, List args,
       {Map namedArgs, bool adjust: false}) {
     var receiverMirror;
     var method;
-    if (receiver is Type) {
+    if (receiver is Type && methodName != #toString) {
       receiverMirror = reflectType(receiver);
       method = receiverMirror.declarations[methodName];
     } else {
       receiverMirror = reflect(receiver);
       method = _findMethod(receiverMirror.type, methodName);
     }
     if (method != null && adjust) {
       var required = 0;
       var optional = 0;
       for (var p in method.parameters) {
@@ skipping 263 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();
 }