AllocationSite objects weakly linked for traversal

src/objects-visiting-inl.h

Index: src/objects-visiting-inl.h
diff --git a/src/objects-visiting-inl.h b/src/objects-visiting-inl.h
index 612f937bc26fb8ab86248c606e28c2d4a346b8af..29abbe2e9f36a9109cb9ea5898c90ce2a52d4aa2 100644
--- a/src/objects-visiting-inl.h
+++ b/src/objects-visiting-inl.h
@@ -185,6 +185,11 @@ void StaticMarkingVisitor<StaticVisitor>::Initialize() {
 
   table_.Register(kVisitNativeContext, &VisitNativeContext);
 
+  table_.Register(kVisitAllocationSite,
+                  &FixedBodyVisitor<StaticVisitor,
+                  AllocationSite::BodyDescriptor,
+                  void>::Visit);
+
   table_.Register(kVisitByteArray, &DataObjectVisitor::Visit);
 
   table_.Register(kVisitFreeSpace, &DataObjectVisitor::Visit);