message: fix(bundle): closure to not rewrite polyfills for minification
diff: @@ -9,6 +9,7 @@ module.exports = function makeClosure(sourcePath) {
  jsCode: [{src: source}],
  languageIn: 'ES2015',
  createSourceMap: true,
  + rewritePolyfills: false,
  };
  var output = compiler(compilerFlags);
  