Special printing for type feedback vectors.

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 a6f72210fc9f2545d77ea92e885a6f801071fadd..2a6e4f3654af41855d5fd5e01d17b0c39a3033de 100644
--- a/src/type-feedback-vector.h
+++ b/src/type-feedback-vector.h
@@ -192,6 +192,13 @@ class TypeFeedbackVector : public FixedArray {
   static Handle<TypeFeedbackVector> Copy(Isolate* isolate,
                                          Handle<TypeFeedbackVector> vector);
 
+#ifdef OBJECT_PRINT
+  // For gdb debugging.
+  void Print();
+#endif  // OBJECT_PRINT
+
+  DECLARE_PRINTER(TypeFeedbackVector)
+
   // Clears the vector slots and the vector ic slots.
   void ClearSlots(SharedFunctionInfo* shared) { ClearSlotsImpl(shared, true); }
   void ClearSlotsAtGCTime(SharedFunctionInfo* shared) {