{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"if"}]}
                if features.internal(name) && !STDLIB_STABLE_CRATES.contains(&crate_name) {
                // but that doesn't really matter - we want a bug report.
                    sess.using_internal_features.store(true, std::sync::atomic::Ordering::Relaxed);