Stop using Element.computeNode() in refactorings and fixes.

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 19 matching lines @@
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_resolution_map.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/exception/exception.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 import 'package:analyzer/plugin/resolver_provider.dart';
 import 'package:analyzer/source/pub_package_map_provider.dart';
 import 'package:analyzer/src/context/builder.dart';
+import 'package:analyzer/src/dart/analysis/ast_provider_context.dart';
+import 'package:analyzer/src/dart/analysis/ast_provider_driver.dart';
 import 'package:analyzer/src/dart/analysis/byte_store.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart' as nd;
 import 'package:analyzer/src/dart/analysis/file_byte_store.dart';
 import 'package:analyzer/src/dart/analysis/file_state.dart' as nd;
 import 'package:analyzer/src/dart/analysis/status.dart' as nd;
 import 'package:analyzer/src/dart/ast/utilities.dart';
+import 'package:analyzer/src/dart/element/ast_provider.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/generated/utilities_general.dart';
 import 'package:analyzer/src/summary/pub_summary.dart';
 import 'package:analyzer/src/task/dart.dart';
 import 'package:analyzer/src/util/glob.dart';
 import 'package:analyzer/task/dart.dart';
 import 'package:plugin/plugin.dart';
@@ skipping 1052 matching lines @@
     channel.sendNotification(notification);
   }
 
   /**
    * Send the given [response] to the client.
    */
   void sendResponse(Response response) {
     channel.sendResponse(response);
   }
 
+  AstProvider getAstProvider(String path) {
+    if (options.enableNewAnalysisDriver) {
+      var analysisDriver = getAnalysisDriver(path);
+      return new AstProviderForDriver(analysisDriver);
+    } else {
+      var analysisContext = getAnalysisContext(path);
+      return new AstProviderForContext(analysisContext);
+    }
+  }
+
   /**
    * Sends a `server.error` notification.
    */
   void sendServerErrorNotification(String message, exception, stackTrace,
       {bool fatal: false}) {
     StringBuffer buffer = new StringBuffer();
     if (exception != null) {
       buffer.write(exception);
     } else {
       buffer.write('null exception');
@@ skipping 983 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');
 }