Add field nested_sites to AllocationSite.

src/objects-inl.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 1307 matching lines @@
 
     return AllocationSite::GetMode(GetElementsKind()) ==
         TRACK_ALLOCATION_SITE;
   }
   return false;
 }
 
 
 void AllocationSite::Initialize() {
   SetElementsKind(GetInitialFastElementsKind());
+  set_nested_site(Smi::FromInt(0));
   set_dependent_code(DependentCode::cast(GetHeap()->empty_fixed_array()),
                      SKIP_WRITE_BARRIER);
 }
 
 
 // Heuristic: We only need to create allocation site info if the boilerplate
 // elements kind is the initial elements kind.
 AllocationSiteMode AllocationSite::GetMode(
     ElementsKind boilerplate_elements_kind) {
   if (FLAG_track_allocation_sites &&
@@ skipping 3142 matching lines @@
 ACCESSORS(ObjectTemplateInfo, constructor, Object, kConstructorOffset)
 ACCESSORS(ObjectTemplateInfo, internal_field_count, Object,
           kInternalFieldCountOffset)
 
 ACCESSORS(SignatureInfo, receiver, Object, kReceiverOffset)
 ACCESSORS(SignatureInfo, args, Object, kArgsOffset)
 
 ACCESSORS(TypeSwitchInfo, types, Object, kTypesOffset)
 
 ACCESSORS(AllocationSite, transition_info, Object, kTransitionInfoOffset)
+ACCESSORS(AllocationSite, nested_site, Object, kNestedSiteOffset)
 ACCESSORS(AllocationSite, dependent_code, DependentCode,
           kDependentCodeOffset)
 ACCESSORS(AllocationSite, weak_next, Object, kWeakNextOffset)
 ACCESSORS(AllocationMemento, allocation_site, Object, kAllocationSiteOffset)
 
 ACCESSORS(Script, source, Object, kSourceOffset)
 ACCESSORS(Script, name, Object, kNameOffset)
 ACCESSORS(Script, id, Smi, kIdOffset)
 ACCESSORS_TO_SMI(Script, line_offset, kLineOffsetOffset)
 ACCESSORS_TO_SMI(Script, column_offset, kColumnOffsetOffset)
@@ skipping 1793 matching lines @@
 #undef WRITE_UINT32_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_