swc/ecmascript/minifier/tests/terser/compress/arrow/issue_2084/input.js

var c = 0;
!(function () {
    !(function (c) {
        c = 1 + c;
        var c = 0;
        function f14(a_1) {
            if (((c = 1 + c), 0 !== (23).toString()))
                (c = 1 + c), a_1 && (a_1[0] = 0);
        }
        f14();
    })(-1);
})();
console.log(c);