Start unraveling circularities between analyzer and front_end/kernel.

pkg/kernel/test/reify/suite.dart

 // Copyright (c) 2017, 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.md file.
 
 library test.kernel.reify.suite;
 
 import 'dart:async' show Future;
 
 import 'dart:io' show Directory, File, Platform;
 
 import 'package:analyzer/src/generated/sdk.dart' show DartSdk;
 
-import 'package:kernel/analyzer/loader.dart'
+import 'package:analyzer/src/kernel/loader.dart'
     show DartLoader, DartOptions, createDartSdk;
 
 import 'package:kernel/target/targets.dart' show Target, TargetFlags, getTarget;
 
 import 'kernel_chain.dart'
     show MatchExpectation, Print, ReadDill, SanityCheck, WriteDill;
 
 import 'package:testing/testing.dart'
     show
         Chain,
@@ skipping 188 matching lines @@
           await StdioProcess.run(context.vm.toFilePath(), [generated.path]);
       print(process.output);
     } finally {
       generated.parent.delete(recursive: true);
     }
     return process.toResult();
   }
 }
 
 main(List<String> arguments) => runMe(arguments, createContext, "testing.json");