Trying to move derived get trap from builtins to global context.

src/objects.cc

 // Copyright 2011 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 221 matching lines @@
   HandleScope scope;
   Handle<Object> receiver(receiver_raw);
   Handle<Object> name(name_raw);
   Handle<Object> handler(handler_raw);
 
   // Extract trap function.
   LookupResult lookup;
   Handle<Object> trap(v8::internal::GetProperty(handler, "get", &lookup));
   if (!lookup.IsFound()) {
     // Get the derived `get' property.
-    Object* derived = isolate->global_context()->builtins()->javascript_builtin(
-        Builtins::DERIVED_GET_TRAP);
-    trap = Handle<JSFunction>(JSFunction::cast(derived));
+    trap = isolate->derived_get_trap();
   }
 
   // Call trap function.
   Object** args[] = { receiver.location(), name.location() };
   bool has_exception;
   Handle<Object> result =
       Execution::Call(trap, handler, ARRAY_SIZE(args), args, &has_exception);
   if (has_exception) return Failure::Exception();
 
   return *result;
@@ skipping 10217 matching lines @@
   if (break_point_objects()->IsUndefined()) return 0;
   // Single beak point.
   if (!break_point_objects()->IsFixedArray()) return 1;
   // Multiple break points.
   return FixedArray::cast(break_point_objects())->length();
 }
 #endif
 
 
 } }  // namespace v8::internal