Revert of Type Feedback Vector lives in the closure

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 1e32a4769ddc179e9e2a0a509d07e0dcf0bed418..d83b77fa3e6f8e628f67f864f74291daf676066f 100644
--- a/src/type-feedback-vector.h
+++ b/src/type-feedback-vector.h
@@ -135,8 +135,6 @@
   static inline int GetSlotSize(FeedbackVectorSlotKind kind);
 
   bool SpecDiffersFrom(const FeedbackVectorSpec* other_spec) const;
-
-  bool DiffersFrom(const TypeFeedbackMetadata* other_metadata) const;
 
   // Returns number of slots in the vector.
   inline int slot_count() const;
@@ -196,12 +194,12 @@
   inline TypeFeedbackMetadata* metadata() const;
 
   // Conversion from a slot to an integer index to the underlying array.
-  static inline int GetIndex(FeedbackVectorSlot slot);
+  inline int GetIndex(FeedbackVectorSlot slot) const;
   static int GetIndexFromSpec(const FeedbackVectorSpec* spec,
                               FeedbackVectorSlot slot);
 
   // Conversion from an integer index to the underlying array to a slot.
-  static inline FeedbackVectorSlot ToSlot(int index);
+  inline FeedbackVectorSlot ToSlot(int index) const;
   inline Object* Get(FeedbackVectorSlot slot) const;
   inline void Set(FeedbackVectorSlot slot, Object* value,
                   WriteBarrierMode mode = UPDATE_WRITE_BARRIER);