Desugar bitwise negation into XOR and kill all UnaryOp stuff.

src/type-info.cc

Index: src/type-info.cc
diff --git a/src/type-info.cc b/src/type-info.cc
index 769df07e4fa20b97186ebbaeaa20e1aca4ef3ec5..79c975c4880bf0ccc60c14e5767695caf2765099 100644
--- a/src/type-info.cc
+++ b/src/type-info.cc
@@ -384,17 +384,6 @@ void TypeFeedbackOracle::CompareType(TypeFeedbackId id,
 }
 
 
-Handle<Type> TypeFeedbackOracle::UnaryType(TypeFeedbackId id) {
-  Handle<Object> object = GetInfo(id);
-  if (!object->IsCode()) {
-    return handle(Type::None(), isolate());
-  }
-  Handle<Code> code = Handle<Code>::cast(object);
-  ASSERT(code->is_unary_op_stub());
-  return UnaryOpStub(code->extended_extra_ic_state()).GetType(isolate());
-}
-
-
 void TypeFeedbackOracle::BinaryType(TypeFeedbackId id,
                                     Handle<Type>* left,
                                     Handle<Type>* right,