{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"buffer_lint(psess,"}]}
                buffer_lint(psess, span, node_id, BuiltinLintDiag::DuplicateMatcherBinding);
                span.push_span_label(prev_info.span, "previous declaration");
            } else if get_binder_info(macros, binders, name).is_none() {