{"ast_node_type":"function","tokens":[{"end":80,"kind":"keyword","start":0,"text":"fn"}]}
    fn warn_about_unused_args(&self, body: &hir::Body<'_>, entry_ln: LiveNode) {
        if let Some(intrinsic) = self.ir.tcx.intrinsic(self.ir.tcx.hir_body_owner_def_id(body.id()))