**Do you want to request a *feature* or report a *bug*?**
Bug

**What is the current behavior?**
Page load throws console error: `Warning: Stateless function components cannot be given refs. Attempts to access this ref will fail.null`

```
// Chrome console
6VM598:27 Warning: Stateless function components cannot be given refs. Attempts to access this ref will fail.null
window.console.error @ VM598:27
printWarning @ warning.js:36
warning @ warning.js:60
mountIndeterminateComponent @ react-dom.development.js:10488
beginWork @ react-dom.development.js:10647
performUnitOfWork @ react-dom.development.js:12621
workLoop @ react-dom.development.js:12730
callCallback @ react-dom.development.js:1319
invokeGuardedCallbackDev @ react-dom.development.js:1358
invokeGuardedCallback @ react-dom.development.js:1215
performWork @ react-dom.development.js:12848
batchedUpdates @ react-dom.development.js:13292
performFiberBatchedUpdates @ react-dom.development.js:1666
stackBatchedUpdates @ react-dom.development.js:1657
batchedUpdates @ react-dom.development.js:1671
batchedUpdatesWithControlledComponents @ react-dom.development.js:1684
dispatchEvent @ react-dom.development.js:1894
```

**What is the expected behavior?**
No console error. Or at least some way to trace which is the stateless component that is causing the issue.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**
`"react": "^16.0.0-rc.3",`
`Chrome Version 60.0.3112.113 (Official Build) (64-bit)`
`macOS Sierra 10.12.6`


- This error only started to appear after upgrading from React 15 -> 16.
element.type.prototype != null &&
      (element.type.prototype: any).unstable_isAsyncReactComponent === true;
    const priorityLevel = getPriorityContext(current, forceAsync);
    const nextState = {element};
    callback = callback === undefined ? null : callback;
    if (__DEV__) {
      warning(
        callback === null || typeof callback === 'function',
        'render(...): Expected the last optional `callback` argument to be a ' +
          'function. Instead received: %s.',
        callback,
      );
    }
    addTopLevelUpdate(current, nextState, callback, priorityLevel);
    scheduleUpdate(current, priorityLevel);
  }
  return {
    createContainer(containerInfo: C): OpaqueRoot {
      return createFiberRoot(containerInfo);
    },
    updateContainer(
      element: ReactNodeList,
      container: OpaqueRoot,
      parentComponent: ?React$Component<any, any>,
      callback: ?Function,
    ): void {
      
      const current = container.current;
      if (__DEV__) {
        if (ReactFiberInstrumentation.debugTool) {