Don't expose hidden properties object as an object property in debugger

src/runtime.cc

Index: src/runtime.cc
===================================================================
--- src/runtime.cc	(revision 3255)
+++ src/runtime.cc	(working copy)
@@ -6004,14 +6004,33 @@
 
   // Get the property names.
   jsproto = obj;
+  int proto_with_hidden_properties = 0;
   for (int i = 0; i < length; i++) {
     jsproto->GetLocalPropertyNames(*names,
                                    i == 0 ? 0 : local_property_count[i - 1]);
+    if (!GetHiddenProperties(jsproto, false)->IsUndefined()) {
+      proto_with_hidden_properties++;
+    }
     if (i < length - 1) {
       jsproto = Handle<JSObject>(JSObject::cast(jsproto->GetPrototype()));
     }
   }
 
+  // Filter out name of hidden propeties object.
+  if (proto_with_hidden_properties > 0) {
+    Handle<FixedArray> old_names = names;
+    names = Factory::NewFixedArray(
+        names->length() - proto_with_hidden_properties);
+    int dest_pos = 0;
+    for (int i = 0; i < total_property_count; i++) {
+      Object* e = old_names->get(i);

[Mads Ager (chromium), 2009/11/10 16:04:08]

Rename 'e' to 'name'?

[yurys, 2009/11/10 16:09:07]

Done.

+      if (e == Heap::hidden_symbol()) {
+        continue;
+      }
+      names->set(dest_pos++, e);
+    }
+  }
+
   DeleteArray(local_property_count);
   return *Factory::NewJSArrayWithElements(names);
 }