Implement handlified String::Equals and Name::Equals.

src/heap-inl.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 542 matching lines @@
 
 bool Heap::CollectGarbage(AllocationSpace space,
                           const char* gc_reason,
                           const v8::GCCallbackFlags callbackFlags) {
   const char* collector_reason = NULL;
   GarbageCollector collector = SelectGarbageCollector(space, &collector_reason);
   return CollectGarbage(collector, gc_reason, collector_reason, callbackFlags);
 }
 
 
-MaybeObject* Heap::PrepareForCompare(String* str) {
-  // Always flatten small strings and force flattening of long strings
-  // after we have accumulated a certain amount we failed to flatten.
-  static const int kMaxAlwaysFlattenLength = 32;
-  static const int kFlattenLongThreshold = 16*KB;
-
-  const int length = str->length();
-  MaybeObject* obj = str->TryFlatten();
-  if (length <= kMaxAlwaysFlattenLength ||
-      unflattened_strings_length_ >= kFlattenLongThreshold) {
-    return obj;
-  }
-  if (obj->IsFailure()) {
-    unflattened_strings_length_ += length;
-  }
-  return str;
-}
-
-
 int64_t Heap::AdjustAmountOfExternalAllocatedMemory(
     int64_t change_in_bytes) {
   ASSERT(HasBeenSetUp());
   int64_t amount = amount_of_external_allocated_memory_ + change_in_bytes;
   if (change_in_bytes > 0) {
     // Avoid overflow.
     if (amount > amount_of_external_allocated_memory_) {
       amount_of_external_allocated_memory_ = amount;
     } else {
       // Give up and reset the counters in case of an overflow.
@@ skipping 225 matching lines @@
 
 
 double GCTracer::SizeOfHeapObjects() {
   return (static_cast<double>(heap_->SizeOfObjects())) / MB;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_