Add isolate accessor to AccessorInfo and Arguments.

src/apiutils.h

-// Copyright 2009 the V8 project authors. All rights reserved.
+// 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
 //       with the distribution.
@@ skipping 21 matching lines @@
  public:
   static int GetNameCount(ExtensionConfiguration* that) {
     return that->name_count_;
   }
 
   static const char** GetNames(ExtensionConfiguration* that) {
     return that->names_;
   }
 
   // Packs additional parameters for the NewArguments function. |implicit_args|
-  // is a pointer to the last element of 3-elements array controlled by GC.
+  // is a pointer to the last element of 4-elements array controlled by GC.
   static void PrepareArgumentsData(internal::Object** implicit_args,
+                                   internal::Isolate* isolate,
                                    internal::Object* data,
                                    internal::JSFunction* callee,
                                    internal::Object* holder) {
     implicit_args[v8::Arguments::kDataIndex] = data;
     implicit_args[v8::Arguments::kCalleeIndex] = callee;
     implicit_args[v8::Arguments::kHolderIndex] = holder;
+    implicit_args[v8::Arguments::kIsolateIndex] =
+        reinterpret_cast<internal::Object*>(isolate);
   }
 
   static v8::Arguments NewArguments(internal::Object** implicit_args,
                                     internal::Object** argv, int argc,
                                     bool is_construct_call) {
     ASSERT(implicit_args[v8::Arguments::kCalleeIndex]->IsJSFunction());
     ASSERT(implicit_args[v8::Arguments::kHolderIndex]->IsHeapObject());
+    ASSERT(implicit_args[v8::Arguments::kIsolateIndex]->IsSmi());

[danno, 2012/04/13 09:00:34]

Comment might be good here why it's a SMI

[Michael Starzinger, 2012/04/13 09:38:38]

Done.

 
     return v8::Arguments(implicit_args, argv, argc, is_construct_call);
   }
 
   // Introduce an alias for the handle scope data to allow non-friends
   // to access the HandleScope data.
   typedef v8::HandleScope::Data HandleScopeData;
 
 #ifdef DEBUG
   static void ZapHandleRange(internal::Object** begin, internal::Object** end);
 #endif
 };
 
 }  // namespace v8
 
 #endif  // V8_APIUTILS_H_