DevTools: use 'empty' for array holes

third_party/WebKit/Source/devtools/front_end/object_ui/RemoteObjectPreviewFormatter.js

 // Copyright (c) 2015 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.
 /**
  * @unrestricted
  */
 ObjectUI.RemoteObjectPreviewFormatter = class {
   /**
    * @param {!Protocol.Runtime.PropertyPreview} a
    * @param {!Protocol.Runtime.PropertyPreview} b
@@ skipping 149 matching lines @@
       parentElement.createTextChild(': ');
       parentElement.appendChild(this._renderPropertyPreviewOrAccessor([property]));
       elementsAdded = true;
     }
 
     /**
      * @param {number} index
      */
     function appendUndefined(index) {
       var span = parentElement.createChild('span', 'object-value-undefined');
-      span.textContent = Common.UIString('undefined × %d', index - lastNonEmptyArrayIndex - 1);
+      span.textContent = Common.UIString('empty × %d', index - lastNonEmptyArrayIndex - 1);
       elementsAdded = true;
     }
   }
 
   /**
    * @param {!Element} parentElement
    * @param {!Protocol.Runtime.ObjectPreview} preview
    */
   _appendEntriesPreview(parentElement, preview) {
     for (var i = 0; i < preview.entries.length; ++i) {
@@ skipping 66 matching lines @@
         preview = '{\u2026}';
       span.textContent = preview;
       span.title = description;
       return span;
     }
 
     span.textContent = description;
     return span;
   }
 };