send priority instrumentation message on startup with version info

pkg/analysis_server/lib/src/constants.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 server.constants;
 
+const String ANALYSIS_SERVER_VERSION = '0.0.1';

[Brian Wilkerson, 2015/01/17 18:08:24]

On an experimental branch that I'm working on I ran into the same need for
making this a constant. I chose to add "AnalysisServer.VERSION" rather than put
it here. That seems cleaner to me, in part because it feels like the contents of
this file could be auto-generated from the spec (except for this new constant).

[danrubel, 2015/01/20 17:23:54]

That works for me. Moved.

+
 //
 // Server methods
 //
 const String SERVER_GET_VERSION = 'server.getVersion';
 const String SERVER_SHUTDOWN = 'server.shutdown';
 const String SERVER_SET_SUBSCRIPTIONS = 'server.setSubscriptions';
 
 //
 // Server notifications
 //
@@ skipping 164 matching lines @@
 const String STATIC_TYPE = 'staticType';
 const String SUBCLASSES = 'subclasses';
 const String SUBSCRIPTIONS = 'subscriptions';
 const String SUGGESTIONS = 'suggestions';
 const String SUPERCLASS = 'superclass';
 const String SUPER_CLASS_MEMBER = 'superclassMember';
 const String TARGETS = 'targets';
 const String TYPE = 'type';
 const String VALUE = 'value';
 const String VERSION = 'version';