Start unraveling circularities between analyzer and front_end/kernel.

pkg/kernel/test/frontend_bench.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:io';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/task/model.dart';
 import 'package:args/args.dart';
-import 'package:kernel/analyzer/loader.dart';
+import 'package:analyzer/src/kernel/loader.dart';
 import 'package:kernel/kernel.dart';
 import 'package:package_config/discovery.dart';
 
 ArgParser parser = new ArgParser()
   ..addOption('sdk',
       help: 'Path to Dart SDK', valueHelp: 'path', defaultsTo: '/usr/lib/dart')
   ..addOption('packages',
       abbr: 'p',
       help: 'Path to the packages folder or .packages file',
       valueHelp: 'path')
@@ skipping 38 matching lines @@
       .loadProgram(uri);
 
   CacheEntry.recomputedCounts.forEach((key, value) {
     print('Recomputed $key $value times');
   });
 
   AnalysisTask.stopwatchMap.forEach((key, Stopwatch watch) {
     print('$key took ${watch.elapsedMilliseconds} ms');
   });
 }