anchor.diff:  import 'dart:async';
   
   import 'package:analysis_server/plugin/edit/fix/fix_core.dart';
  +import 'package:analysis_server/plugin/edit/fix/fix_dart.dart';
   import 'package:analysis_server/plugin/protocol/protocol.dart'
       hide AnalysisError;
   import 'package:analysis_server/src/services/correction/fix.dart';
   import 'package:analysis_server/src/services/correction/fix_internal.dart';
  +import 'package:analyzer/dart/ast/ast.dart';
   import 'package:analyzer/dart/ast/standard_resolution_map.dart';
   import 'package:analyzer/error/error.dart';
   import 'package:analyzer/file_system/file_system.dart';
   import 'package:analyzer/source/package_map_resolver.dart';
   import 'package:analyzer/src/error/codes.dart';
  +import 'package:analyzer/src/generated/engine.dart';
   import 'package:analyzer/src/generated/parser.dart';
   import 'package:analyzer/src/generated/source.dart';
   import 'package:test/test.dart';
  
positive.code:    * Computes fixes for the given [error] in [testUnit].
     */
    Future<List<Fix>> _computeFixes(AnalysisError error) async {
      FixContextImpl fixContext = new FixContextImpl(provider, context, error);
      DefaultFixContributor contributor = new DefaultFixContributor();
      return contributor.computeFixes(fixContext);
    }
  
    /**
  
negative.code: main() {
    defineReflectiveSuite(() {
      defineReflectiveTests(FixProcessorTest);
      defineReflectiveTests(FixProcessorTest_Driver);
      defineReflectiveTests(LintFixTest);
    });
  }
  