{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"segment.ident.span.shrink_to_hi().to(args.span_ext),"}]}
                            segment.ident.span.shrink_to_hi().to(args.span_ext),
                        err.span_suggestion_verbose(
                            "the `Self` type doesn't accept type parameters",