-"NULL" L C I(identifier, Identifier("NULL"), tk::Identifier_, hi::Constant);
-"nil" L C I(identifier, Identifier("nil"), tk::Identifier_, hi::Constant);
-"YES" L C I(identifier, Identifier("YES"), tk::Identifier_, hi::Constant);
-"NO" L C I(identifier, Identifier("NO"), tk::Identifier_, hi::Constant);
+"NULL" L C I(identifier, Identifier("NULL"), tk::Identifier_, hi::Constant);
+"nil" L C I(identifier, Identifier("nil"), tk::Identifier_, hi::Constant);
+"YES" L C I(identifier, Identifier("YES"), tk::Identifier_, hi::Constant);
+"NO" L C I(identifier, Identifier("NO"), tk::Identifier_, hi::Constant);