[turbofan] Type feedback for numeric comparisons.

src/compiler/type-hint-analyzer.h

Index: src/compiler/type-hint-analyzer.h
diff --git a/src/compiler/type-hint-analyzer.h b/src/compiler/type-hint-analyzer.h
index 1a799056335bd5994084affe7e8c858b4884221b..bfb62327d58b94bed181fac48eebd4158d4cc8d0 100644
--- a/src/compiler/type-hint-analyzer.h
+++ b/src/compiler/type-hint-analyzer.h
@@ -18,14 +18,20 @@ class TypeHintAnalysis final : public ZoneObject {
  public:
   typedef ZoneMap<TypeFeedbackId, Handle<Code>> Infos;
 
-  explicit TypeHintAnalysis(Infos const& infos) : infos_(infos) {}
+  explicit TypeHintAnalysis(Infos const& infos, Zone* zone)
+      : infos_(infos), zone_(zone) {}
 
   bool GetBinaryOperationHints(TypeFeedbackId id,
                                BinaryOperationHints* hints) const;
+  bool GetCompareOperationHints(TypeFeedbackId id,
+                                CompareOperationHints* hints) const;
   bool GetToBooleanHints(TypeFeedbackId id, ToBooleanHints* hints) const;
 
  private:
+  Zone* zone() const { return zone_; }
+
   Infos const infos_;
+  Zone* zone_;
 };