{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"self.dcx().emit_fatal(errors::FnParamTooMany"}]}
            self.dcx().emit_fatal(errors::FnParamTooMany { span, max_num_args });
            let Param { span, .. } = fn_decl.inputs[0];
        }