{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"//"}]}
        // with the subpatterns directly in the tuple variant pattern, e.g., `V_i(p_0, .., p_N)`.
        // N-arity-tuple, e.g., `V_i((p_0, .., p_N))`. Meanwhile, the user supplied a pattern
        let missing_parentheses = match (expected.kind(), fields, had_err) {