Start unraveling circularities between analyzer and front_end/kernel.

pkg/analyzer/lib/src/kernel/loader.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.
 library kernel.analyzer.loader;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io' as io;
 
 import 'package:analyzer/analyzer.dart';
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
+import 'package:analyzer/src/dart/element/member.dart';
 import 'package:analyzer/src/dart/scanner/scanner.dart';
 import 'package:analyzer/src/dart/sdk/sdk.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/parser.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/summary/summary_sdk.dart';
 import 'package:kernel/application_root.dart';
 import 'package:package_config/discovery.dart';
 import 'package:package_config/packages.dart';
 
-import '../ast.dart' as ast;
-import '../target/targets.dart' show Target;
-import '../type_algebra.dart';
-import 'analyzer.dart';
-import 'ast_from_analyzer.dart';
+import 'package:kernel/ast.dart' as ast;
+import 'package:kernel/target/targets.dart' show Target;
+import 'package:kernel/type_algebra.dart';
+import 'package:analyzer/src/kernel/ast_from_analyzer.dart';
 
 /// Options passed to the Dart frontend.
 class DartOptions {
   /// True if user code should be loaded in strong mode.
   bool strongMode;
 
   /// True if the Dart SDK should be loaded in strong mode.
   bool strongModeSdk;
 
   /// Path to the sdk sources, ignored if sdkSummary is provided.
@@ skipping 955 matching lines @@
   AnalysisContext context = AnalysisEngine.instance.createAnalysisContext()
     ..sourceFactory = new SourceFactory(resolvers)
     ..analysisOptions = createAnalysisOptions(options.strongMode);
 
   options.declaredVariables.forEach((String name, String value) {
     context.declaredVariables.define(name, value);
   });
 
   return context;
 }