Add support for getting the sessionId from instrumentation and sending it to the client

pkg/analysis_server/lib/plugin/protocol/generated_protocol.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.
 //
 // This file has been automatically generated.  Please do not edit it manually.
 // To regenerate the file, use the script
 // "pkg/analysis_server/tool/spec/generate_files".
 
 part of analysis_server.plugin.protocol.protocol;
 
@@ skipping 249 matching lines @@
     return 748820900;
   }
 }
 
 /**
  * server.connected params
  *
  * {
  *   "version": String
  *   "pid": int
+ *   "sessionId": optional String
  * }
  *
  * Clients may not extend, implement or mix-in this class.
  */
 class ServerConnectedParams implements HasToJson {
   String _version;
 
   int _pid;
 
+  String _sessionId;
+
   /**
    * The version number of the analysis server.
    */
   String get version => _version;
 
   /**
    * The version number of the analysis server.
    */
   void set version(String value) {
     assert(value != null);
     this._version = value;
   }
 
   /**
    * The process id of the analysis server process.
    */
   int get pid => _pid;
 
   /**
    * The process id of the analysis server process.
    */
   void set pid(int value) {
     assert(value != null);
     this._pid = value;
   }
 
-  ServerConnectedParams(String version, int pid) {
+  /**
+   * The session id for this session.
+   */
+  String get sessionId => _sessionId;
+
+  /**
+   * The session id for this session.
+   */
+  void set sessionId(String value) {
+    this._sessionId = value;
+  }
+
+  ServerConnectedParams(String version, int pid, {String sessionId}) {
     this.version = version;
     this.pid = pid;
+    this.sessionId = sessionId;
   }
 
   factory ServerConnectedParams.fromJson(JsonDecoder jsonDecoder, String jsonPath, Object json) {
     if (json == null) {
       json = {};
     }
     if (json is Map) {
       String version;
       if (json.containsKey("version")) {
         version = jsonDecoder.decodeString(jsonPath + ".version", json["version"]);
       } else {
         throw jsonDecoder.missingKey(jsonPath, "version");
       }
       int pid;
       if (json.containsKey("pid")) {
         pid = jsonDecoder.decodeInt(jsonPath + ".pid", json["pid"]);
       } else {
         throw jsonDecoder.missingKey(jsonPath, "pid");
       }
-      return new ServerConnectedParams(version, pid);
+      String sessionId;
+      if (json.containsKey("sessionId")) {
+        sessionId = jsonDecoder.decodeString(jsonPath + ".sessionId", json["sessionId"]);
+      }
+      return new ServerConnectedParams(version, pid, sessionId: sessionId);
     } else {
       throw jsonDecoder.mismatch(jsonPath, "server.connected params", json);
     }
   }
 
   factory ServerConnectedParams.fromNotification(Notification notification) {
     return new ServerConnectedParams.fromJson(
         new ResponseDecoder(null), "params", notification._params);
   }
 
   Map<String, dynamic> toJson() {
     Map<String, dynamic> result = {};
     result["version"] = version;
     result["pid"] = pid;
+    if (sessionId != null) {
+      result["sessionId"] = sessionId;
+    }
     return result;
   }
 
   Notification toNotification() {
     return new Notification("server.connected", toJson());
   }
 
   @override
   String toString() => JSON.encode(toJson());
 
   @override
   bool operator==(other) {
     if (other is ServerConnectedParams) {
       return version == other.version &&
-          pid == other.pid;
+          pid == other.pid &&
+          sessionId == other.sessionId;
     }
     return false;
   }
 
   @override
   int get hashCode {
     int hash = 0;
     hash = JenkinsSmiHash.combine(hash, version.hashCode);
     hash = JenkinsSmiHash.combine(hash, pid.hashCode);
+    hash = JenkinsSmiHash.combine(hash, sessionId.hashCode);
     return JenkinsSmiHash.finish(hash);
   }
 }
 
 /**
  * server.error params
  *
  * {
  *   "isFatal": bool
  *   "message": String
@@ skipping 16634 matching lines @@
     return false;
   }
 
   @override
   int get hashCode {
     int hash = 0;
     hash = JenkinsSmiHash.combine(hash, newName.hashCode);
     return JenkinsSmiHash.finish(hash);
   }
 }