babel/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-async-arrow-functions/actual.js

var concat = async (...arrs) => {
  var x = arrs[0];
  var y = arrs[1];
};

var x = async (...rest) => {
  if (noNeedToWork) return 0;
  return rest;
};