DevTools: [JSDoc] Fix invalid @param and @return annotations

Source/devtools/front_end/sdk/Target.js

 /*
  * Copyright 2014 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /**
  * @constructor
  * @extends {Protocol.Agents}
  * @param {!InspectorBackendClass.Connection} connection
@@ skipping 227 matching lines @@
     /**
      * @param {!InspectorBackendClass.Connection} connection
      * @param {function(!WebInspector.Target)=} callback
      */
     createTarget: function(connection, callback)
     {
         var target = new WebInspector.Target(connection, callbackWrapper.bind(this));
 
         /**
          * @this {WebInspector.TargetManager}
-         * @param newTarget
+         * @param {!WebInspector.Target} newTarget
          */
         function callbackWrapper(newTarget)
         {
             this._targets.push(newTarget);
             var copy = this._observers;
             for (var i = 0; i < copy.length; ++i)
                 copy[i].targetAdded(newTarget);
 
             if (callback)
                 callback(newTarget);
@@ skipping 33 matching lines @@
     /**
      * @param {!WebInspector.Target} target
      */
     targetRemoved: function(target) { },
 }
 
 /**
  * @type {!WebInspector.TargetManager}
  */
 WebInspector.targetManager;