Don't use Persistent in runtime

src/i18n.cc

 // Copyright 2013 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 779 matching lines @@
           *isolate->factory()->NewStringFromAscii(CStrVector("dateFormat")))) {
     return reinterpret_cast<icu::SimpleDateFormat*>(
         obj->GetInternalField(0));
   }
 
   return NULL;
 }
 
 
 void DateFormat::DeleteDateFormat(v8::Isolate* isolate,
-                                  Persistent<v8::Object>* object,
+                                  Persistent<v8::Value>* object,
                                   void* param) {
   // First delete the hidden C++ object.
   delete reinterpret_cast<icu::SimpleDateFormat*>(Handle<JSObject>::cast(
       v8::Utils::OpenPersistent(object))->GetInternalField(0));
 
   // Then dispose of the persistent handle to JS object.
   object->Dispose(isolate);
 }
 
 
@@ skipping 42 matching lines @@
   if (obj->HasLocalProperty(*isolate->factory()->NewStringFromAscii(
           CStrVector("numberFormat")))) {
     return reinterpret_cast<icu::DecimalFormat*>(obj->GetInternalField(0));
   }
 
   return NULL;
 }
 
 
 void NumberFormat::DeleteNumberFormat(v8::Isolate* isolate,
-                                      Persistent<v8::Object>* object,
+                                      Persistent<v8::Value>* object,
                                       void* param) {
   // First delete the hidden C++ object.
   delete reinterpret_cast<icu::DecimalFormat*>(Handle<JSObject>::cast(
       v8::Utils::OpenPersistent(object))->GetInternalField(0));
 
   // Then dispose of the persistent handle to JS object.
   object->Dispose(isolate);
 }
 
 
@@ skipping 39 matching lines @@
   if (obj->HasLocalProperty(*isolate->factory()->NewStringFromAscii(
           CStrVector("collator")))) {
     return reinterpret_cast<icu::Collator*>(obj->GetInternalField(0));
   }
 
   return NULL;
 }
 
 
 void Collator::DeleteCollator(v8::Isolate* isolate,
-                              Persistent<v8::Object>* object,
+                              Persistent<v8::Value>* object,
                               void* param) {
   // First delete the hidden C++ object.
   delete reinterpret_cast<icu::Collator*>(Handle<JSObject>::cast(
       v8::Utils::OpenPersistent(object))->GetInternalField(0));
 
   // Then dispose of the persistent handle to JS object.
   object->Dispose(isolate);
 }
 
 } }  // namespace v8::internal