Prepare for turning on SDK summaries in Analysis Server.

pkg/analysis_server/lib/src/server/driver.dart

Index: pkg/analysis_server/lib/src/server/driver.dart
diff --git a/pkg/analysis_server/lib/src/server/driver.dart b/pkg/analysis_server/lib/src/server/driver.dart
index 7db68b655d58f914a9405729342ace8d20036feb..6228efbd5cdc4e350e265b2c5cab8454c4f08db5 100644
--- a/pkg/analysis_server/lib/src/server/driver.dart
+++ b/pkg/analysis_server/lib/src/server/driver.dart
@@ -375,6 +375,22 @@ class Driver implements ServerStarter {
 
     _initIncrementalLogger(results[INCREMENTAL_RESOLUTION_LOG]);
 
+    //
+    // Process all of the plugins so that extensions are registered.
+    //
+    ServerPlugin serverPlugin = new ServerPlugin();
+    List<Plugin> plugins = <Plugin>[];
+    plugins.addAll(AnalysisEngine.instance.requiredPlugins);
+    plugins.add(AnalysisEngine.instance.commandLinePlugin);
+    plugins.add(AnalysisEngine.instance.optionsPlugin);
+    plugins.add(serverPlugin);
+    plugins.add(linterPlugin);
+    plugins.add(linterServerPlugin);
+    plugins.add(dartCompletionPlugin);
+    plugins.addAll(_userDefinedPlugins);
+    ExtensionManager manager = new ExtensionManager();
+    manager.processPlugins(plugins);
+
     JavaFile defaultSdkDirectory;
     if (results[SDK_OPTION] != null) {
       defaultSdkDirectory = new JavaFile(results[SDK_OPTION]);
@@ -408,22 +424,6 @@ class Driver implements ServerStarter {
         results[CLIENT_VERSION], AnalysisServer.VERSION, defaultSdk.sdkVersion);
     AnalysisEngine.instance.instrumentationService = service;
     //
-    // Process all of the plugins so that extensions are registered.
-    //
-    ServerPlugin serverPlugin = new ServerPlugin();
-    List<Plugin> plugins = <Plugin>[];
-    plugins.addAll(AnalysisEngine.instance.requiredPlugins);
-    plugins.add(AnalysisEngine.instance.commandLinePlugin);
-    plugins.add(AnalysisEngine.instance.optionsPlugin);
-    plugins.add(serverPlugin);
-    plugins.add(linterPlugin);
-    plugins.add(linterServerPlugin);
-    plugins.add(dartCompletionPlugin);
-    plugins.addAll(_userDefinedPlugins);
-
-    ExtensionManager manager = new ExtensionManager();
-    manager.processPlugins(plugins);
-    //
     // Create the sockets and start listening for requests.
     //
     socketServer = new SocketServer(