Fix for subscribing for notifications for files in packages.

pkg/analysis_server/lib/src/edit/edit_domain.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 edit.domain;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/collections.dart';
@@ skipping 40 matching lines @@
    */
   EditDomainHandler(this.server) {
     searchEngine = server.searchEngine;
     _newRefactoringManager();
   }
 
   Response format(Request request) {
     EditFormatParams params = new EditFormatParams.fromRequest(request);
     String file = params.file;
 
-    engine.AnalysisContext context = server.getAnalysisContext(file);
+    ContextSourcePair contextSource = server.getContextSourcePair(file);
+
+    engine.AnalysisContext context = contextSource.context;
     if (context == null) {
       return new Response.formatInvalidFile(request);
     }
 
-    Source source = server.getSource(file);
+    Source source = contextSource.source;
     engine.TimestampedData<String> contents;
     try {
       contents = context.getContents(source);
     } catch (e) {
       return new Response.formatInvalidFile(request);
     }
 
     String unformattedSource = contents.data;
 
     int start = params.selectionOffset;
@@ skipping 401 matching lines @@
       }
     }
     if (kind == RefactoringKind.INLINE_METHOD) {
       List<CompilationUnit> units = server.getResolvedCompilationUnits(file);
       if (units.isNotEmpty) {
         refactoring =
             new InlineMethodRefactoring(searchEngine, units[0], offset);
       }
     }
     if (kind == RefactoringKind.MOVE_FILE) {
-      engine.AnalysisContext context = server.getAnalysisContext(file);
-      Source source = server.getSource(file);
+      ContextSourcePair contextSource = server.getContextSourcePair(file);
+      engine.AnalysisContext context = contextSource.context;
+      Source source = contextSource.source;
       refactoring = new MoveFileRefactoring(
           server.resourceProvider.pathContext, searchEngine, context, source);
     }
     if (kind == RefactoringKind.RENAME) {
       List<AstNode> nodes = server.getNodesAtOffset(file, offset);
       List<Element> elements = server.getElementsOfNodes(nodes, offset);
       if (nodes.isNotEmpty && elements.isNotEmpty) {
         AstNode node = nodes[0];
         Element element = elements[0];
         if (element is FieldFormalParameterElement) {
@@ skipping 122 matching lines @@
     }
     if (refactoring is RenameRefactoring) {
       RenameRefactoring renameRefactoring = refactoring;
       RenameOptions renameOptions = params.options;
       renameRefactoring.newName = renameOptions.newName;
       return renameRefactoring.checkNewName();
     }
     return new RefactoringStatus();
   }
 }