When clearing filled call target caches we should go back to the

src/objects-inl.h

Index: src/objects-inl.h
===================================================================
--- src/objects-inl.h	(revision 19457)
+++ src/objects-inl.h	(working copy)
@@ -6553,17 +6553,11 @@
 }
 
 
-Handle<Object> TypeFeedbackInfo::MonomorphicArraySentinel(Isolate* isolate,
-    ElementsKind elements_kind) {
-  return Handle<Object>(Smi::FromInt(static_cast<int>(elements_kind)), isolate);
+Object* TypeFeedbackInfo::RawPremonomorphicSentinel(Heap* heap) {
+  return heap->null_value();
 }
 
 
-Object* TypeFeedbackInfo::RawUninitializedSentinel(Heap* heap) {
-  return heap->the_hole_value();
-}
-
-
 int TypeFeedbackInfo::ic_total_count() {
   int current = Smi::cast(READ_FIELD(this, kStorage1Offset))->value();
   return ICTotalCountField::decode(current);