{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"sess.dcx().emit_fatal(errors::LinkerFileStem);"}]}
                    sess.dcx().emit_fatal(errors::LinkerFileStem);
                let stem = linker.file_stem().and_then(|stem| stem.to_str()).unwrap_or_else(|| {
                });