AllocationSite objects weakly linked for traversal

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 091a0eb5e9ee69d2d1b56414d36259df1e68e202..e1c0b59b57d4af27d5ff0e95c616267b6e5d0fc4 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -1343,6 +1343,11 @@ AllocationSiteMode AllocationSite::GetMode(ElementsKind from,
 }
 
 
+void AllocationSite::AllocationSiteIterateBody(ObjectVisitor* v) {
+  v->VisitAllocationSite(this);
+}
+
+
 MaybeObject* JSObject::EnsureCanContainHeapObjectElements() {
   ValidateElements();
   ElementsKind elements_kind = map()->elements_kind();
@@ -4450,6 +4455,7 @@ ACCESSORS(SignatureInfo, args, Object, kArgsOffset)
 ACCESSORS(TypeSwitchInfo, types, Object, kTypesOffset)
 
 ACCESSORS(AllocationSite, transition_info, Object, kTransitionInfoOffset)
+ACCESSORS(AllocationSite, weak_next, Object, kWeakNextOffset)
 ACCESSORS(AllocationSiteInfo, allocation_site, Object, kAllocationSiteOffset)
 
 ACCESSORS(Script, source, Object, kSourceOffset)