Implement tracking and optimizations of packed arrays

src/api.h

 // 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
@@ skipping 87 matching lines @@
 NeanderObject::NeanderObject(v8::internal::Object* obj)
     : value_(v8::internal::Handle<v8::internal::JSObject>(
         v8::internal::JSObject::cast(obj))) { }
 
 
 NeanderArray::NeanderArray(v8::internal::Handle<v8::internal::Object> obj)
     : obj_(obj) { }
 
 
 v8::internal::Object* NeanderObject::get(int offset) {
-  ASSERT(value()->HasFastElements());
+  ASSERT(value()->HasFastObjectElements());
   return v8::internal::FixedArray::cast(value()->elements())->get(offset);
 }
 
 
 void NeanderObject::set(int offset, v8::internal::Object* value) {
-  ASSERT(value_->HasFastElements());
+  ASSERT(value_->HasFastObjectElements());
   v8::internal::FixedArray::cast(value_->elements())->set(offset, value);
 }
 
 
 template <typename T> inline T ToCData(v8::internal::Object* obj) {
   STATIC_ASSERT(sizeof(T) == sizeof(v8::internal::Address));
   return reinterpret_cast<T>(
       reinterpret_cast<intptr_t>(
           v8::internal::Foreign::cast(obj)->foreign_address()));
 }
@@ skipping 435 matching lines @@
     stress_type_ = stress_type;
   }
 
  private:
   static v8::Testing::StressType stress_type_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_API_H_