Added first shot at a development shell

src/natives.h

 // Copyright 2006-2008 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 16 matching lines @@
 
 #ifndef V8_NATIVES_H_
 #define V8_NATIVES_H_
 
 namespace v8 { namespace internal {
 
 typedef bool (*NativeSourceCallback)(Vector<const char> name,
                                      Vector<const char> source,
                                      int index);
 
-class Natives {
+enum NativeType {
+  CORE, D8
+};
+
+template <NativeType type>
+class NativesCollection {
  public:
   // Number of built-in scripts.
   static int GetBuiltinsCount();
   // Number of delayed/lazy loading scripts.
   static int GetDelayCount();
 
   // These are used to access built-in scripts.
   // The delayed script has an index in the interval [0, GetDelayCount()).
   // The non-delayed script has an index in the interval
   // [GetDelayCount(), GetNativesCount()).
   static int GetIndex(const char* name);
   static Vector<const char> GetScriptSource(int index);
   static Vector<const char> GetScriptName(int index);
 };
 
+typedef NativesCollection<CORE> Natives;
+
 } }  // namespace v8::internal
 
 #endif  // V8_NATIVES_H_