{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"//"}]}
            // lto is requested. See PR #136840 for background information.
            // thin lto summaries prevent fat lto, so do not emit them if fat
            emit_thin_lto: sess.opts.unstable_opts.emit_thin_lto && sess.lto() != Lto::Fat,