{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"(Name::new_symbol_root(sym::isize),"}]}
            (Name::new_symbol_root(sym::isize), BuiltinType::Int(BuiltinInt::Isize)),
            (Name::new_symbol_root(sym::i8),    BuiltinType::Int(BuiltinInt::I8)),