Start unraveling circularities between analyzer and front_end/kernel.

pkg/front_end/lib/src/fasta/testing/suite.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.md file.
 
 library fasta.testing.suite;
 
 import 'dart:async' show Future;
 
 import 'dart:convert' show JSON;
 
 import 'package:analyzer/src/generated/sdk.dart' show DartSdk;
 
 import 'package:kernel/ast.dart' show Library, Program;
 
-import 'package:kernel/analyzer/loader.dart' show DartLoader;
+import 'package:analyzer/src/kernel/loader.dart' show DartLoader;
 
 import 'package:kernel/target/targets.dart' show Target, TargetFlags, getTarget;
 
 import 'package:testing/testing.dart'
     show Chain, ExpectationSet, Result, Step, TestDescription;
 
 import '../errors.dart' show InputError;
 
 import 'kernel_chain.dart'
     show MatchExpectation, Print, Run, Verify, TestContext, WriteDill;
@@ skipping 160 matching lines @@
       p = await sourceTarget.writeOutline(null);
       if (fullCompile) {
         p = await sourceTarget.writeProgram(null);
       }
     } on InputError catch (e, s) {
       return fail(null, e.error, s);
     }
     return pass(p);
   }
 }