Ask Dart analysis results only for Dart files.

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 1235 matching lines @@
   /**
    * Implementation for `analysis.setSubscriptions`.
    */
   void setAnalysisSubscriptions(
       Map<AnalysisService, Set<String>> subscriptions) {
     if (notificationManager != null) {
       notificationManager.setSubscriptions(subscriptions);
     }
     if (options.enableNewAnalysisDriver) {
       this.analysisServices = subscriptions;
-      Iterable<nd.AnalysisDriver> drivers = driverMap.values;
-      if (drivers.isNotEmpty) {
-        Set<String> allNewFiles =
-            subscriptions.values.expand((files) => files).toSet();
-        for (String file in allNewFiles) {
-          nd.AnalysisDriver driver = drivers.firstWhere(
-              (driver) => driver.addedFiles.contains(file),
-              orElse: () => drivers.first);
-          // The result will be produced by the "results" stream with
-          // the fully resolved unit, and processed with sending analysis
-          // notifications as it happens after content changes.
-          driver.getResult(file).catchError((exception, stackTrace) {});
+      Set<String> allNewFiles =
+          subscriptions.values.expand((files) => files).toSet();
+      for (String file in allNewFiles) {
+        // The result will be produced by the "results" stream with
+        // the fully resolved unit, and processed with sending analysis
+        // notifications as it happens after content changes.
+        if (AnalysisEngine.isDartFileName(file)) {
+          getAnalysisResult(file);
         }
       }
       return;
     }
     // send notifications for already analyzed sources
     subscriptions.forEach((service, Set<String> newFiles) {
       Set<String> oldFiles = analysisServices[service];
       Set<String> todoFiles =
           oldFiles != null ? newFiles.difference(oldFiles) : newFiles;
       for (String file in todoFiles) {
@@ skipping 981 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');
 }