{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//"}]}
            // Snippet is *not* input before unescaping, so spans pointing at it will be incorrect.
        let input_vec: Vec<(Range<usize>, usize, char)> = if pre_input_vec.is_empty() {
            // This can happen with proc macros that respan generated literals.