Remove internalized cons string types.

src/heap.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 4946 matching lines @@
 
 
 Map* Heap::InternalizedStringMapForString(String* string) {
   // If the string is in new space it cannot be used as internalized.
   if (InNewSpace(string)) return NULL;
 
   // Find the corresponding internalized string map for strings.
   switch (string->map()->instance_type()) {
     case STRING_TYPE: return internalized_string_map();
     case ASCII_STRING_TYPE: return ascii_internalized_string_map();
-    case CONS_STRING_TYPE: return cons_internalized_string_map();
-    case CONS_ASCII_STRING_TYPE: return cons_ascii_internalized_string_map();
     case EXTERNAL_STRING_TYPE: return external_internalized_string_map();
     case EXTERNAL_ASCII_STRING_TYPE:
       return external_ascii_internalized_string_map();
     case EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE:
       return external_internalized_string_with_one_byte_data_map();
     case SHORT_EXTERNAL_STRING_TYPE:
       return short_external_internalized_string_map();
     case SHORT_EXTERNAL_ASCII_STRING_TYPE:
       return short_external_ascii_internalized_string_map();
     case SHORT_EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE:
@@ skipping 2888 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 
 } }  // namespace v8::internal