DevTools: use 'empty' for array holes

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

Index: third_party/WebKit/Source/devtools/front_end/object_ui/RemoteObjectPreviewFormatter.js
diff --git a/third_party/WebKit/Source/devtools/front_end/object_ui/RemoteObjectPreviewFormatter.js b/third_party/WebKit/Source/devtools/front_end/object_ui/RemoteObjectPreviewFormatter.js
index 632b2de7ff3359dd4d3179d90faea3abdf5f70a3..34a4ebdc4acb49ea5ac65fe186c7fce6991647e4 100644
--- a/third_party/WebKit/Source/devtools/front_end/object_ui/RemoteObjectPreviewFormatter.js
+++ b/third_party/WebKit/Source/devtools/front_end/object_ui/RemoteObjectPreviewFormatter.js
@@ -167,7 +167,7 @@ ObjectUI.RemoteObjectPreviewFormatter = class {
      */
     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;
     }
   }