{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"///"}]}
/// (this should be done as rarely as possible).
/// compilation should call `cx.diagnostic().abort_if_errors()`
pub(crate) fn check_zero_tts(cx: &ExtCtxt<'_>, span: Span, tts: TokenStream, name: &str) {