X64: Fix bad value in stack layout constants.

src/mark-compact.cc

 // Copyright 2006-2008 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 1123 matching lines @@
        current < space->top();
        current += object->Size()) {
     object = HeapObject::FromAddress(current);
     if (object->IsMarked()) {
       object->ClearMark();
       MarkCompactCollector::tracer()->decrement_marked_count();
     } else {
       // We give non-live objects a map that will correctly give their size,
       // since their existing map might not be live after the collection.
       int size = object->Size();
-      if (size >= Array::kHeaderSize) {
+      if (size >= ByteArray::kHeaderSize) {
         object->set_map(Heap::byte_array_map());
         ByteArray::cast(object)->set_length(ByteArray::LengthFor(size));
       } else {
         ASSERT(size == kPointerSize);
         object->set_map(Heap::one_word_filler_map());
       }
       ASSERT(object->Size() == size);
     }
     // The object is now unmarked for the call to Size() at the top of the
     // loop.
@@ skipping 645 matching lines @@
 
 void MarkCompactCollector::RebuildRSets() {
 #ifdef DEBUG
   ASSERT(state_ == RELOCATE_OBJECTS);
   state_ = REBUILD_RSETS;
 #endif
   Heap::RebuildRSets();
 }
 
 } }  // namespace v8::internal