AllocationSite::memento_found_count() and friends need Smi access.

src/hydrogen-instructions.h

 // 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 5934 matching lines @@
 
   static HObjectAccess ForArrayLength(ElementsKind elements_kind) {
     return HObjectAccess(
         kArrayLengths,
         JSArray::kLengthOffset,
         IsFastElementsKind(elements_kind) &&
             FLAG_track_fields
                 ? Representation::Smi() : Representation::Tagged());
   }
 
-  static HObjectAccess ForAllocationSiteOffset(int offset) {
-    ASSERT(offset >= HeapObject::kHeaderSize && offset < AllocationSite::kSize);
-    return HObjectAccess(kInobject, offset);
-  }
+  static HObjectAccess ForAllocationSiteOffset(int offset);
 
   static HObjectAccess ForAllocationSiteList() {
     return HObjectAccess(kExternalMemory, 0, Representation::Tagged());
   }
 
   static HObjectAccess ForFixedArrayLength() {
     return HObjectAccess(
         kArrayLengths,
         FixedArray::kLengthOffset,
         FLAG_track_fields ? Representation::Smi() : Representation::Tagged());
@@ skipping 1517 matching lines @@
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_