[Ignition] Use binary operation feedback from Ignition to Crankshaft.

src/type-feedback-vector-inl.h

Index: src/type-feedback-vector-inl.h
diff --git a/src/type-feedback-vector-inl.h b/src/type-feedback-vector-inl.h
index 4a1c01f1bc9fc096d1f3d2d1ee42220bf09c19f7..29e0ff74519da8d9b911ea78afe760c06370ea61 100644
--- a/src/type-feedback-vector-inl.h
+++ b/src/type-feedback-vector-inl.h
@@ -123,6 +123,8 @@ void TypeFeedbackVector::Set(FeedbackVectorSlot slot, Object* value,
 // Helper function to transform the feedback to BinaryOperationHint.
 BinaryOperationHint BinaryOperationHintFromFeedback(int type_feedback) {
   switch (type_feedback) {
+    case BinaryOperationFeedback::kNone:
+      return BinaryOperationHint::kNone;

[mythria, 2016/09/22 14:09:42]

Benedikt, I updated this function to pass None feedback when the slot is
uninitialized instead of Any. I thought the earlier implementation of passing
BinaryOperationHint::kAny was not intentional.If so, let me know I will add a
comment explaining why.

[Benedikt Meurer, 2016/09/23 03:34:38]

Yeah, this seems reasonable, defaulting to any is not a good idea.

     case BinaryOperationFeedback::kSignedSmall:
       return BinaryOperationHint::kSignedSmall;
     case BinaryOperationFeedback::kNumber:
@@ -138,6 +140,8 @@ BinaryOperationHint BinaryOperationHintFromFeedback(int type_feedback) {
 // Helper function to transform the feedback to CompareOperationHint.
 CompareOperationHint CompareOperationHintFromFeedback(int type_feedback) {
   switch (type_feedback) {
+    case CompareOperationFeedback::kNone:
+      return CompareOperationHint::kNone;
     case CompareOperationFeedback::kSignedSmall:
       return CompareOperationHint::kSignedSmall;
     case CompareOperationFeedback::kNumber:
@@ -145,6 +149,8 @@ CompareOperationHint CompareOperationHintFromFeedback(int type_feedback) {
     default:
       return CompareOperationHint::kAny;
   }
+  UNREACHABLE();
+  return CompareOperationHint::kNone;
 }
 
 void TypeFeedbackVector::ComputeCounts(int* with_type_info, int* generic,