Fix compile error introduced in 24002.

src/serialize.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 1902 matching lines @@
 }
 
 
 void CodeSerializer::SerializeCodeStub(Code* code, HowToCode how_to_code,
                                        WhereToPoint where_to_point, int skip) {
   DCHECK((how_to_code == kPlain && where_to_point == kStartOfObject) ||
          (how_to_code == kPlain && where_to_point == kInnerPointer) ||
          (how_to_code == kFromCode && where_to_point == kInnerPointer));
   uint32_t stub_key = code->stub_key();
 
-  if (CodeStub::MajorKeyFromKey(stub_key) == CodeStub::NoCacheKey()) {
+  if (stub_key == CodeStub::NoCacheKey()) {
     if (FLAG_trace_code_serializer) {
       PrintF("Encoding uncacheable code stub as heap object\n");
     }
     SerializeHeapObject(code, how_to_code, where_to_point, skip);
     return;
   }
 
   if (skip != 0) {
     sink_->Put(kSkip, "SkipFromSerializeCodeStub");
     sink_->PutInt(skip, "SkipDistanceFromSerializeCodeStub");
@@ skipping 129 matching lines @@
 
 int SerializedCodeData::CheckSum(String* string) {
   int checksum = Version::Hash();
 #ifdef DEBUG
   uint32_t seed = static_cast<uint32_t>(checksum);
   checksum = static_cast<int>(IteratingStringHasher::Hash(string, seed));
 #endif  // DEBUG
   return checksum;
 }
 } }  // namespace v8::internal