Desugar bitwise negation into XOR and kill all UnaryOp stuff.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index d2aadabbcf95d3acdb6409e22f6d91be7b554346..376fe9b6b473ba7bbe0fcb31e649d20f9549a987 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4016,21 +4016,6 @@ void Code::set_check_type(CheckType value) {
 }
 
 
-byte Code::unary_op_type() {
-  ASSERT(is_unary_op_stub());
-  return UnaryOpTypeField::decode(
-      READ_UINT32_FIELD(this, kKindSpecificFlags1Offset));
-}
-
-
-void Code::set_unary_op_type(byte value) {
-  ASSERT(is_unary_op_stub());
-  int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset);
-  int updated = UnaryOpTypeField::update(previous, value);
-  WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated);
-}
-
-
 byte Code::to_boolean_state() {
   return extended_extra_ic_state();
 }