babel/experimental/babel-preset-env/test/fixtures/sanity/transform-duplicate-keys/expected.js

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var a = _defineProperty({
  b: 1
}, "b", 2);