Make any exception in the operations loop fatal.

pkg/analysis_server/lib/src/analysis_server.dart

Index: pkg/analysis_server/lib/src/analysis_server.dart
diff --git a/pkg/analysis_server/lib/src/analysis_server.dart b/pkg/analysis_server/lib/src/analysis_server.dart
index 16f00f98389c960fc554f0cd31c58602b67f1201..279884ab50c37b56f44d56e190fb453b4e90cc5d 100644
--- a/pkg/analysis_server/lib/src/analysis_server.dart
+++ b/pkg/analysis_server/lib/src/analysis_server.dart
@@ -403,6 +403,7 @@ class AnalysisServer {
             new CaughtException(exception, stackTrace));
       }
       _sendServerErrorNotification(exception, stackTrace);
+      shutdown();
     } finally {
       if (!operationQueue.isEmpty) {
         _schedulePerformOperation();
@@ -740,7 +741,7 @@ class AnalysisServer {
   }
 
   /**
-   * Sends a non-fatal `server.error` notification.
+   * Sends a fatal `server.error` notification.
    */
   void _sendServerErrorNotification(exception, stackTrace) {
     // prepare exception.toString()
@@ -759,7 +760,7 @@ class AnalysisServer {
     }
     // send the notification
     Notification notification = new Notification(SERVER_ERROR);
-    notification.setParameter(FATAL, false);
+    notification.setParameter(FATAL, true);
     notification.setParameter(MESSAGE, exceptionString);
     notification.setParameter(STACK_TRACE, stackTraceString);
     channel.sendNotification(notification);