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

Source/devtools/front_end/common/ModuleManager.js

 /*
  * Copyright (C) 2014 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 267 matching lines @@
      * @type {string}
      */
     this.name;
 
     /**
      * @type {!Array.<!WebInspector.ModuleManager.ExtensionDescriptor>}
      */
     this.extensions;
 
     /**
-     * @type {!Array.<!string>|undefined}
+     * @type {!Array.<string>|undefined}
      */
     this.dependencies;
 
     /**
      * @type {!Array.<string>}
      */
     this.scripts;
 }
 
 /**
@@ skipping 179 matching lines @@
 }
 
 WebInspector.Revealer.prototype = {
     /**
      * @param {!Object} object
      */
     reveal: function(object) {}
 }
 
 WebInspector.moduleManager = new WebInspector.ModuleManager(allDescriptors);