ES6 symbols: prevent reflection and proxy APIs from leaking symbols

src/objects.h

 // Copyright 2012 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2039 matching lines @@
   void LookupRealNamedPropertyInPrototypes(Name* name, LookupResult* result);
   MUST_USE_RESULT MaybeObject* SetElementWithCallbackSetterInPrototypes(
       uint32_t index, Object* value, bool* found, StrictModeFlag strict_mode);
   void LookupCallbackProperty(Name* name, LookupResult* result);
 
   // Returns the number of properties on this object filtering out properties
   // with the specified attributes (ignoring interceptors).
   int NumberOfLocalProperties(PropertyAttributes filter = NONE);
   // Fill in details for properties into storage starting at the specified
   // index.
-  void GetLocalPropertyNames(FixedArray* storage, int index);
+  void GetLocalPropertyNames(
+      FixedArray* storage, int index, PropertyAttributes filter = NONE);
 
   // Returns the number of properties on this object filtering out properties
   // with the specified attributes (ignoring interceptors).
   int NumberOfLocalElements(PropertyAttributes filter);
   // Returns the number of enumerable elements (ignoring interceptors).
   int NumberOfEnumElements();
   // Returns the number of elements on this object filtering out elements
   // with the specified attributes (ignoring interceptors).
   int GetLocalElementKeys(FixedArray* storage, PropertyAttributes filter);
   // Count and fill in the enumerable elements into storage.
@@ skipping 1177 matching lines @@
 
   // Returns the number of enumerable elements in the dictionary.
   int NumberOfEnumElements();
 
   enum SortMode { UNSORTED, SORTED };
   // Copies keys to preallocated fixed array.
   void CopyKeysTo(FixedArray* storage,
                   PropertyAttributes filter,
                   SortMode sort_mode);
   // Fill in details for properties into storage.
-  void CopyKeysTo(FixedArray* storage, int index, SortMode sort_mode);
+  void CopyKeysTo(FixedArray* storage,
+                  int index,
+                  PropertyAttributes filter,
+                  SortMode sort_mode);
 
   // Accessors for next enumeration index.
   void SetNextEnumerationIndex(int index) {
     ASSERT(index != 0);
     this->set(kNextEnumerationIndexIndex, Smi::FromInt(index));
   }
 
   int NextEnumerationIndex() {
     return Smi::cast(FixedArray::get(kNextEnumerationIndexIndex))->value();
   }
@@ skipping 5995 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_