Replace Map with HashMap

pkg/analysis_server/lib/src/domain_analysis.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 domain.analysis;
 
+import 'dart:collection';
+
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
 
 /**
  * Instances of the class [AnalysisDomainHandler] implement a [RequestHandler]
  * that handles requests in the `analysis` domain.
  */
 class AnalysisDomainHandler implements RequestHandler {
   /**
@@ skipping 59 matching lines @@
     // TODO(scheglov) implement
     return null;
   }
 
   Response setSubscriptions(Request request) {
     // parse subscriptions
     Map<AnalysisService, Set<String>> subMap;
     {
       RequestDatum subDatum = request.getRequiredParameter(SUBSCRIPTIONS);
       Map<String, List<String>> subStringMap = subDatum.asStringListMap();
-      subMap = new Map<AnalysisService, Set<String>>();
+      subMap = new HashMap<AnalysisService, Set<String>>();
       subStringMap.forEach((String serviceName, List<String> paths) {
         AnalysisService service = Enum2.valueOf(AnalysisService.VALUES, serviceName);
         if (service == null) {
           throw new RequestFailure(
               new Response.unknownAnalysisService(request, serviceName));
         }
-        subMap[service] = new Set.from(paths);
+        subMap[service] = new HashSet.from(paths);
       });
     }
     server.setAnalysisSubscriptions(subMap);
     return new Response(request.id);
   }
 
   Response updateContent(Request request) {
-    var changes = new Map<String, ContentChange>();
+    var changes = new HashMap<String, ContentChange>();
     RequestDatum filesDatum = request.getRequiredParameter(FILES);
     filesDatum.forEachMap((file, changeDatum) {
       var change = new ContentChange();
       change.content = changeDatum[CONTENT].asString();
       if (changeDatum.hasKey(OFFSET)) {
         change.offset = changeDatum[OFFSET].asInt();
         change.oldLength = changeDatum[OLD_LENGTH].asInt();
         change.newLength = changeDatum[NEW_LENGTH].asInt();
       }
       changes[file] = change;
@@ skipping 16 matching lines @@
 
 /**
  * A description of the change to the content of a file.
  */
 class ContentChange {
   String content;
   int offset;
   int oldLength;
   int newLength;
 }