Create AllocationSite objects, pointed to by AllocationSiteInfo.

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index 589bd5a48f16bc2f892396f4fc3d2b2a99cac6b1..4713a41ec23549c065cc460bf430a89f45269c8c 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -675,8 +675,9 @@ void CallNew::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
   if (is_monomorphic_) {
     target_ = oracle->GetCallNewTarget(this);
     Object* value = allocation_info_cell_->value();
-    if (value->IsSmi()) {
-      elements_kind_ = static_cast<ElementsKind>(Smi::cast(value)->value());
+    if (value->IsAllocationSite()) {
+      AllocationSite* site = AllocationSite::cast(value);
+      elements_kind_ = site->GetElementsKindPayload();
     }
   }
 }