anchor.diff:    final String contextUrl;
     final UrlTemplate template;
     final Map<String, RouteInvoker> routes = {};
  -
  -  _Target(this.contextUrl, this.template);
  +  final ClassMirror groupMirror;
  +  final MethodMirror methodMirror;
  +
  +  _Target(this.contextUrl, this.template, [this.methodMirror, this.groupMirror]);
   }
   
   class _InterceptorListBuilder {
  
positive.code:             "Configured target for $url ${route.conf.methods}: ${route.name}");
        }
        _targetListBuilder.add(_getContextUrl(pathPrefix), urlTemplate,
            route.conf.methods, _serverCtx.routeInvokers[route]);
      }
  
      for (GroupMetadata group in lib.groups) {
  
negative.code: import 'dart:io';
  import 'dart:async';
  import 'dart:math';
  import 'dart:mirrors';
  
  import 'package:shelf/shelf.dart' as shelf;
  import 'package:shelf/shelf_io.dart' as shelf_io;
  