{"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"let"}]}
        let _p = tracing::info_span!("SourceToDefCtx::file_to_def").entered();
    pub(super) fn file_to_def(&mut self, file: FileId) -> &SmallVec<[ModuleId; 1]> {
        self.cache.file_to_def_cache.entry(file).or_insert_with(|| {