Function truncate

deps/v8/test/wasm-js/third_party/testharness.js:958–964

(s, len)

     * if it was longer.
     */
    function truncate(s, len)
    {
        if (s.length > len) {
            return s.substring(0, len - 3) + "...";
        }
        return s;
    }

    /*
     * Return true if object is probably a Node object.