function getDictionaryKey(inst) {
	  // Prevents V8 performance issue:
	  // https://github.com/facebook/react/pull/7232
	  return '.' + inst._rootNodeID;
	}
Turns
['abort', ...]
into
eventTypes = {
  'abort': {
    phasedRegistrationNames: {
      bubbled: 'onAbort',
      captured: 'onAbortCapture',
    },
    dependencies: ['topAbort'],
  },
  ...
};
topLevelEventsToDispatchConfig = {
  'topAbort': { sameConfig }
};