Update to make Extract/Inline local and Extract Method refactorings work.

pkg/analysis_server/lib/src/analysis_server.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 analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:core';
 import 'dart:io' as io;
@@ skipping 783 matching lines @@
     }
     return null;
   }
 
   /**
    * Return a [Future] that completes with the resolved [CompilationUnit] for
    * the Dart file with the given [path], or with `null` if the file is not a
    * Dart file or cannot be resolved.
    */
   Future<CompilationUnit> getResolvedCompilationUnit(String path) async {
+    if (options.enableNewAnalysisDriver) {
+      nd.AnalysisResult result = await getAnalysisResult(path);
+      return result?.unit;
+    }
     ContextSourcePair contextSource = getContextSourcePair(path);
     AnalysisContext context = contextSource.context;
     if (context == null) {
       return null;
     }
     return runWithActiveContext(context, () {
       Source unitSource = contextSource.source;
       List<Source> librarySources = context.getLibrariesContaining(unitSource);
       for (Source librarySource in librarySources) {
         return context.resolveCompilationUnit2(unitSource, librarySource);
@@ skipping 1243 matching lines @@
   /**
    * The [PerformanceTag] for time spent in server request handlers.
    */
   static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
 
   /**
    * The [PerformanceTag] for time spent in split store microtasks.
    */
   static PerformanceTag splitStore = new PerformanceTag('splitStore');
 }