`ReactServerRenderingTransaction` doesn’t have a `checkpoint()`, so any component with `handleError()` crashes during server rendering. I tested on 15, but pretty sure this is in master as well.

Fiddle: https://jsfiddle.net/un1nqs0w/

cc @jimfb 

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @emails react-core
 */
'use strict';
var React;
var ReactDOM;
describe('ReactErrorBoundaries', function() {
  beforeEach(function() {
    ReactDOM = require('ReactDOM');
    React = require('React');
  });
  it('does not register event handlers for unmounted children', function() {
    class Angry extends React.Component {
      render() {
        throw new Error('Please, do not render me.');
      }
    }
    class Boundary extends React.Component {