Revert "Convert UnaryOpStub to a HydrogenCodeStub"

src/type-info.cc

Index: src/type-info.cc
diff --git a/src/type-info.cc b/src/type-info.cc
index e2be3aa66db4c0a7089bc5a072be9446fc59107a..83eb9c45b49932755bcc998d3e4d821828b556da 100644
--- a/src/type-info.cc
+++ b/src/type-info.cc
@@ -395,7 +395,8 @@ Handle<Type> TypeFeedbackOracle::UnaryType(TypeFeedbackId id) {
   }
   Handle<Code> code = Handle<Code>::cast(object);
   ASSERT(code->is_unary_op_stub());
-  return UnaryOpStub(code->extra_ic_state()).GetType(isolate());
+  return UnaryOpIC::TypeInfoToType(
+      static_cast<UnaryOpIC::TypeInfo>(code->unary_op_type()), isolate());
 }
 
 
@@ -697,16 +698,4 @@ void TypeFeedbackOracle::SetInfo(TypeFeedbackId ast_id, Object* target) {
 #endif
 }
 
-
-Representation Representation::FromType(TypeInfo info) {
-  if (info.IsUninitialized()) return Representation::None();
-  // TODO(verwaest): Return Smi rather than Integer32.
-  if (info.IsSmi()) return Representation::Integer32();
-  if (info.IsInteger32()) return Representation::Integer32();
-  if (info.IsDouble()) return Representation::Double();
-  if (info.IsNumber()) return Representation::Double();
-  return Representation::Tagged();
-}
-
-
 } }  // namespace v8::internal