All private symbols are own symbols

src/lookup.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_LOOKUP_H_
 #define V8_LOOKUP_H_
 
 #include "src/factory.h"
 #include "src/isolate.h"
 #include "src/objects.h"
@@ skipping 259 matching lines @@
     return number_;
   }
   int dictionary_entry() const {
     DCHECK(has_property_);
     DCHECK(holder_map_->is_dictionary_map());
     return number_;
   }
 
   static Configuration ComputeConfiguration(
       Configuration configuration, Handle<Name> name) {
-    if (name->IsOwn()) {
+    if (name->IsPrivate()) {
       return static_cast<Configuration>(configuration &
                                         HIDDEN_SKIP_INTERCEPTOR);
     } else {
       return configuration;
     }
   }
 
   enum class ExoticIndexState { kUninitialized, kNotExotic, kExotic };
   bool IsIntegerIndexedExotic(JSReceiver* holder);
 
@@ skipping 13 matching lines @@
   Handle<JSReceiver> holder_;
   Handle<Map> holder_map_;
   const Handle<JSReceiver> initial_holder_;
   uint32_t number_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LOOKUP_H_