Enable SDK summaries with --enable-new-analysis-driver flag.

pkg/analysis_server/lib/src/server/driver.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 driver;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:math';
 
@@ skipping 371 matching lines @@
         return;
       }
     }
 
     AnalysisServerOptions analysisServerOptions = new AnalysisServerOptions();
     analysisServerOptions.enableIncrementalResolutionApi =
         results[ENABLE_INCREMENTAL_RESOLUTION_API];
     analysisServerOptions.enableIncrementalResolutionValidation =
         results[INCREMENTAL_RESOLUTION_VALIDATION];
     analysisServerOptions.enableNewAnalysisDriver =
-      results[ENABLE_NEW_ANALYSIS_DRIVER];
+        results[ENABLE_NEW_ANALYSIS_DRIVER];
     analysisServerOptions.enablePubSummaryManager =
         results[ENABLE_PUB_SUMMARY_MANAGER];
     analysisServerOptions.finerGrainedInvalidation =
         true /*results[FINER_GRAINED_INVALIDATION]*/;
     analysisServerOptions.noErrorNotification = results[NO_ERROR_NOTIFICATION];
     analysisServerOptions.noIndex = results[NO_INDEX];
     analysisServerOptions.useAnalysisHighlight2 =
         results[USE_ANALISYS_HIGHLIGHT2];
     analysisServerOptions.fileReadMode = results[FILE_READ_MODE];
 
@@ skipping 18 matching lines @@
     String defaultSdkPath;
     if (results[SDK_OPTION] != null) {
       defaultSdkPath = results[SDK_OPTION];
     } else {
       // No path to the SDK was provided.
       // Use DirectoryBasedDartSdk.defaultSdkDirectory, which will make a guess.
       defaultSdkPath = FolderBasedDartSdk
           .defaultSdkDirectory(PhysicalResourceProvider.INSTANCE)
           .path;
     }
-    bool useSummaries = analysisServerOptions.fileReadMode == 'as-is';
+    bool useSummaries = analysisServerOptions.fileReadMode == 'as-is' ||
+        analysisServerOptions.enableNewAnalysisDriver;
     // TODO(brianwilkerson) It would be nice to avoid creating an SDK that
     // cannot be re-used, but the SDK is needed to create a package map provider
     // in the case where we need to run `pub` in order to get the package map.
     DartSdk defaultSdk = _createDefaultSdk(defaultSdkPath, useSummaries);
     //
     // Initialize the instrumentation service.
     //
     String logFilePath = results[INSTRUMENTATION_LOG_FILE];
     if (logFilePath != null) {
       _rollLogFiles(logFilePath, 5);
@@ skipping 206 matching lines @@
    */
   static void _rollLogFiles(String path, int numOld) {
     for (int i = numOld - 1; i >= 0; i--) {
       try {
         String oldPath = i == 0 ? path : '$path.$i';
         new File(oldPath).renameSync('$path.${i+1}');
       } catch (e) {}
     }
   }
 }