{"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"builder.per_function_section("}]}
    builder.per_function_section(
    let default_function_sections = sess.target.function_sections && !sess.target.is_like_windows;
        sess.opts.unstable_opts.function_sections.unwrap_or(default_function_sections),