Function UTF8ToString

docs/webassembly/files/apps/hello-world/hello.js:1065–1068

(ptr, maxBytesToRead)

     * @return {string}
     */
  var UTF8ToString = (ptr, maxBytesToRead) => {
      assert(typeof ptr == 'number', `UTF8ToString expects a number (got ${typeof ptr})`);
      return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
    };
  var SYSCALLS = {
  varargs:undefined,
  getStr(ptr) {