DevTools: Add JSDoc for static methods, fix JSDoc types and induced errors

Source/devtools/front_end/sources/NavigatorView.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 45 matching lines @@
     this._rootNode.populate();
 
     this.element.addEventListener("contextmenu", this.handleContextMenu.bind(this), false);
 }
 
 WebInspector.NavigatorView.Events = {
     ItemSelected: "ItemSelected",
     ItemRenamed: "ItemRenamed",
 }
 
+/**
+ * @param {string} type
+ * @return {string}
+ */
 WebInspector.NavigatorView.iconClassForType = function(type)
 {
     if (type === WebInspector.NavigatorTreeOutline.Types.Domain)
         return "navigator-domain-tree-item";
     if (type === WebInspector.NavigatorTreeOutline.Types.FileSystem)
         return "navigator-folder-tree-item";
     return "navigator-folder-tree-item";
 }
 
 WebInspector.NavigatorView.prototype = {
@@ skipping 1345 matching lines @@
 
     willRemoveChild: function(node)
     {
         if (node._isMerged || !this.isPopulated())
             return;
         this._treeElement.removeChild(node._treeElement);
     },
 
     __proto__: WebInspector.NavigatorTreeNode.prototype
 }