This DEV-only field was added in 836331ba5f69f2cc53b273ec073fae116db14302 by @sebmarkbage but it's not being used anymore to my knowledge.
return <div>{props.name}</div>;
}
describe('ReactFunctionComponent', () => {
  beforeEach(() => {
    jest.resetModuleRegistry();
    PropTypes = require('prop-types');
    React = require('react');
    ReactDOM = require('react-dom');
    ReactTestUtils = require('react-dom/test-utils');
  });
  it('should render stateless component', () => {
    const el = document.createElement('div');
    ReactDOM.render(<FunctionComponent name="A" />, el);
    expect(el.textContent).toBe('A');
  });
  it('should update stateless component', () => {
    class Parent extends React.Component {