vector-based ICs did not update type feedback counts correctly.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index cff5b61b527bec83db46b2efbc99d85898e0a1ae..c57d55783464373171201d1b33d32cfb98127449 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -6151,6 +6151,9 @@ ACCESSORS(Code, deoptimization_data, FixedArray, kDeoptimizationDataOffset)
 ACCESSORS(Code, raw_type_feedback_info, Object, kTypeFeedbackInfoOffset)
 ACCESSORS(Code, next_code_link, Object, kNextCodeLinkOffset)
 
+ACCESSORS(TypeFeedbackInfo, feedback_vector, TypeFeedbackVector,
+          kFeedbackVectorOffset)
+
 
 void Code::WipeOutHeader() {
   WRITE_FIELD(this, kRelocationInfoOffset, NULL);