ES6: Add support for Map and Set Iterator

src/objects.h

 // Copyright 2012 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include "allocation.h"
 #include "assert-scope.h"
 #include "builtins.h"
@@ skipping 9968 matching lines @@
     kKindKeys = 1,
     kKindValues = 2,
     kKindEntries = 3
   };
 
   // Returns an iterator result object: {value: any, done: boolean} and moves
   // the index to the next valid entry. Closes the iterator if moving past the
   // end.
   static Handle<JSObject> Next(Handle<Derived> iterator);
 
- protected:
-  static Handle<Derived> CreateInternal(
-      Handle<Map> map, Handle<TableType> table, int kind);
-
  private:
   // Transitions the iterator to the non obsolote backing store. This is a NOP
   // if the [table] is not obsolete.
   void Transition();
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(OrderedHashTableIterator);
 };
 
 
 class JSSetIterator: public OrderedHashTableIterator<JSSetIterator,
                                                      OrderedHashSet> {
  public:
-  // Creates a new iterator associated with [table].
-  // [kind] needs to be one of the OrderedHashTableIterator Kind enum values.
-  static inline Handle<JSSetIterator> Create(
-      Handle<OrderedHashSet> table, int kind);
-
   // Dispatched behavior.
   DECLARE_PRINTER(JSSetIterator)
   DECLARE_VERIFIER(JSSetIterator)
 
   // Casting.
   static inline JSSetIterator* cast(Object* obj);
 
   static Handle<Object> ValueForKind(
       Handle<JSSetIterator> iterator,
       int entry_index);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSSetIterator);
 };
 
 
 class JSMapIterator: public OrderedHashTableIterator<JSMapIterator,
                                                      OrderedHashMap> {
  public:
-  // Creates a new iterator associated with [table].
-  // [kind] needs to be one of the OrderedHashTableIterator Kind enum values.
-  static inline Handle<JSMapIterator> Create(
-      Handle<OrderedHashMap> table, int kind);
-
   // Dispatched behavior.
   DECLARE_PRINTER(JSMapIterator)
   DECLARE_VERIFIER(JSMapIterator)
 
   // Casting.
   static inline JSMapIterator* cast(Object* obj);
 
   static Handle<Object> ValueForKind(
       Handle<JSMapIterator> iterator,
       int entry_index);
@@ skipping 1030 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_