old_contents: require("babel-polyfill");
  const React = require("react");
  const ReactDOM = require("react-dom");
  const ReactTestUtils = require("react-addons-test-utils");
  global.React = React;
  global.ReactDOM = ReactDOM;
  global.TestUtils = ReactTestUtils;
  
new_contents: require("./projectRequireHack");
  require("babel-polyfill");
  const React = require("react");
  const ReactDOM = require("react-dom");
  const ReactTestUtils = require("react-addons-test-utils");
  global.React = React;
  global.ReactDOM = ReactDOM;
  global.TestUtils = ReactTestUtils;
  
subject: include projectRequireHack for test helper