Revert "Remove IC age from Code."

src/objects-inl.h

 // 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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 6437 matching lines @@
 }
 
 
 void Code::set_stub_key(uint32_t key) {
   DCHECK(IsCodeStubOrIC());
   set_raw_type_feedback_info(Smi::FromInt(key));
 }
 
 
 ACCESSORS(Code, gc_metadata, Object, kGCMetadataOffset)
+INT_ACCESSORS(Code, ic_age, kICAgeOffset)
 
 
 byte* Code::instruction_start()  {
   return FIELD_ADDR(this, kHeaderSize);
 }
 
 
 byte* Code::instruction_end()  {
   return instruction_start() + instruction_size();
 }
@@ skipping 1162 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_