Merge RawICData::range_feedback_ field into RawICData::state_bits_.

runtime/vm/raw_object.h

Index: runtime/vm/raw_object.h
diff --git a/runtime/vm/raw_object.h b/runtime/vm/raw_object.h
index 64608293918d514adea8cbb7a6b0b13a6b6864c1..058d58f78977f14507d610d9dbb5c23308bd5b64 100644
--- a/runtime/vm/raw_object.h
+++ b/runtime/vm/raw_object.h
@@ -1281,8 +1281,7 @@ class RawICData : public RawObject {
   }
   int32_t deopt_id_;     // Deoptimization id corresponding to this IC.
   uint32_t state_bits_;  // Number of arguments tested in IC, deopt reasons,
-                         // is closure call, JS warning issued.
-  uint32_t range_feedback_;
+                         // is closure call, JS warning issued, range feedback.
 };