Added a DependentCode field to AllocationSite.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 13ae603520b222ff9f4a6bdfacbf57718742af15..4187704ae11c45716588c78c996966e5e3adcb8f 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -1323,6 +1323,12 @@ bool JSObject::ShouldTrackAllocationInfo() {
   return false;
 }
 
+void AllocationSite::Initialize() {
+  SetElementsKind(GetInitialFastElementsKind());
+  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.
@@ -4505,6 +4511,8 @@ ACCESSORS(SignatureInfo, args, Object, kArgsOffset)
 ACCESSORS(TypeSwitchInfo, types, Object, kTypesOffset)
 
 ACCESSORS(AllocationSite, transition_info, Object, kTransitionInfoOffset)
+ACCESSORS(AllocationSite, dependent_code, DependentCode,
+          kDependentCodeOffset)
 ACCESSORS(AllocationSite, weak_next, Object, kWeakNextOffset)
 ACCESSORS(AllocationMemento, allocation_site, Object, kAllocationSiteOffset)