{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
        // List of (source_location, symbol) for duplicate symbol errors to report.
        let mut nonlocal_symbols_emitted: FxHashSet<String> = FxHashSet::default();
        let mut duplicate_symbol_errors: Vec<(String, String)> = Vec::new();