Vector ICs: Make the Oracle gather feedback for vector stores.

src/type-feedback-vector.h

Index: src/type-feedback-vector.h
diff --git a/src/type-feedback-vector.h b/src/type-feedback-vector.h
index 86292a2ab008d11faf8b449fc171d09c41debc62..29e4402d7d2dac5446ca360655635a5f9b3105a3 100644
--- a/src/type-feedback-vector.h
+++ b/src/type-feedback-vector.h
@@ -490,6 +490,12 @@ class KeyedStoreICNexus : public FeedbackNexus {
   // name can be null.
   void ConfigurePolymorphic(Handle<Name> name, MapHandleList* maps,
                             CodeHandleList* handlers);
+  void ConfigurePolymorphic(MapHandleList* maps,
+                            MapHandleList* transitioned_maps,
+                            CodeHandleList* handlers);
+
+  KeyedAccessStoreMode GetKeyedAccessStoreMode() const;
+  IcCheckType GetKeyType() const;
 
   InlineCacheState StateFromFeedback() const override;
   Name* FindFirstName() const override;