{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"//"}]}
        // indicates that it's part of a UTF-8 char.
        // For character in the chunk, see if its byte value is < 0, which
        let multibyte_test = _mm_cmplt_epi8(chunk, _mm_set1_epi8(0));