Special case the recording of constant pool entries in the slot buffer.

src/serialize.cc

 // 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 1662 matching lines @@
                            kCanReturnSkipInsteadOfSkipping);
   HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain;
   sink_->Put(kExternalReference + how_to_code + kStartOfObject, "ExternalRef");
   sink_->PutInt(skip, "SkipB4ExternalRef");
   Address target = rinfo->target_address();
   sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id");
   bytes_processed_so_far_ += rinfo->target_address_size();
 }
 
 
+void Serializer::ObjectSerializer::VisitCodeTarget(
+      Address target_address_pointer) {
+  int skip = OutputRawData(target_address_pointer,
+                           kCanReturnSkipInsteadOfSkipping);
+  Code* object = Code::GetCodeFromTargetAddress(
+      Memory::Address_at(target_address_pointer));
+  serializer_->SerializeObject(object, kFromCode, kInnerPointer, skip);
+  bytes_processed_so_far_ += kPointerSize;
+}
+
+
 void Serializer::ObjectSerializer::VisitCodeTarget(RelocInfo* rinfo) {
   int skip = OutputRawData(rinfo->target_address_address(),
                            kCanReturnSkipInsteadOfSkipping);
   Code* object = Code::GetCodeFromTargetAddress(rinfo->target_address());
   serializer_->SerializeObject(object, kFromCode, kInnerPointer, skip);
   bytes_processed_so_far_ += rinfo->target_address_size();
 }
 
 
 void Serializer::ObjectSerializer::VisitCodeEntry(Address entry_address) {
@@ skipping 155 matching lines @@
 
 bool SnapshotByteSource::AtEOF() {
   if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false;
   for (int x = position_; x < length_; x++) {
     if (data_[x] != SerializerDeserializer::nop()) return false;
   }
   return true;
 }
 
 } }  // namespace v8::internal