{"ast_node_type":"function","tokens":[{"end":60,"kind":"keyword","start":0,"text":"fn"}]}
    fn is_signed(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool;
pub trait SignType<'gcc, 'tcx> {
    fn is_unsigned(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool;