anchor.diff:      // The order of formatters matters as formatters earlier in the list take
       // precedence.
       _formatters = [
  +      new ObjectInternalsFormatter(),
         new ClassFormatter(),
         new TypeFormatter(),
         new NamedConstructorFormatter(),
  
positive.code:   static const skipDart = const JsonMLConfig("skipDart");
    static const keyToString = const JsonMLConfig("keyToString");
    static const asClass = const JsonMLConfig("asClass");
  }
  
  int _maxSpanLength = 100;
  
negative.code:       entries.add(new NameValuePair(
            name: entries.length.toString(), value: entryWrapper));
      });
      addInstanceMembers(object, entries);
      addMetadataChildren(object, entries);
      return entries.toList();
    }
  
    // We've formatted as a Map, but we may want to see the internals
    // of the Map, particularly for domain objects that implement Map.
    // Add an ObjectFormatter view underneath.
    void addInstanceMembers(object, Set<NameValuePair> ret) {
      ret.add(new NameValuePair(
          name: "[[instance members]]",
          value: object,
          config: JsonMLConfig.asObject));
    }
  }
  
  