{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"crate::constant::eval_mir_constant(fx,"}]}
                crate::constant::eval_mir_constant(fx, idx_const).0.try_to_scalar_int().unwrap()
            let idx_const = if let Some(idx_const) = idx.node.constant() {
            } else {