{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"//"}]}
    // `exported_symbols` will be empty when !should_codegen.
fn exported_symbols_for_proc_macro_crate(tcx: TyCtxt<'_>) -> Vec<(String, SymbolExportKind)> {
    if !tcx.sess.opts.output_types.should_codegen() {