{"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"if"}]}
                    if let ty::ReBound(debruijn, b) = result_value.kind() {
                    // e.g., here `result_value` might be `'?1` in the example above...
                        // ... in which case we would set `canonical_vars[0]` to `Some('static)`.