Implement 'Import Library' Quick Fix for project libraries using TopLevelDeclarationInSource.

pkg/analysis_server/test/services/correction/fix_test.dart

 // Copyright (c) 2014, 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 test.services.correction.fix;
 
 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/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/parser.dart';
 import 'package:analyzer/src/generated/source.dart';
@@ skipping 114 matching lines @@
     expect(group.positions, unorderedEquals(expectedPositions));
     if (expectedSuggestions != null) {
       expect(group.suggestions, unorderedEquals(expectedSuggestions));
     }
   }
 
   /**
    * Computes fixes for the given [error] in [testUnit].
    */
   Future<List<Fix>> _computeFixes(AnalysisError error) async {
-    DartFixContext dartContext = new DartFixContextImpl(
-        new FixContextImpl(provider, context, error), testUnit);
-    FixProcessor processor = new FixProcessor(dartContext);
-    return processor.compute();
+    FixContextImpl fixContext = new FixContextImpl(provider, context, error);
+    DefaultFixContributor contributor = new DefaultFixContributor();
+    return contributor.computeFixes(fixContext);
   }
 
   /**
    * Configures the [SourceFactory] to have the `my_pkg` package in
    * `/packages/my_pkg/lib` folder.
    */
   void _configureMyPkg(Map<String, String> pathToCode) {
     pathToCode.forEach((path, code) {
       provider.newFile('/packages/my_pkg/lib/$path', code);
     });
@@ skipping 5344 matching lines @@
   var v = 42;
   print('v: $v');
 }
 ''');
   }
 
   void verifyResult(String expectedResult) {
     expect(resultCode, expectedResult);
   }
 }