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

Bug

**What is the current behavior?**

Consider the following code:

```js
const forwardRefComponentLike = function forwardRefComponentLike(_props, _ref) {
  return <span>FowardRef</span>;
};

const FowardRefComponent = React.forwardRef(forwardRefComponentLike, {});

const MemoOfFowardRefComponent = React.memo(FowardRefComponent);
```

The `MemoOfFowardRefComponent` component does not pick up the name of the ForwardRefComponent and is instead rendered in devtools as:

```
 Anonymous [Memo]
    forwardRefComponentLike [ForwardRef]
```

<img width="262" alt="Screen Shot 2019-09-09 at 10 45 02 PM" src="https://user-images.githubusercontent.com/227292/64587241-81816d00-d353-11e9-8f20-873aa00f5076.png">

See this codesandbox for a demo and a comparison of how React.memo handles regular functional components: https://codesandbox.io/s/react-forwardref-and-memo-combo-33vx7

**What is the expected behavior?**

I would expect this to pick up the name of the thing passed into React.Memo, as happens for regular components

```
forwardRefComponentLike [Memo]
```

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

Tested with React 16.9.0.
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        setTrackedPath(null);
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    const isRoot = fiber.tag === HostRoot;
    const primaryFiber = getPrimaryFiber(fiber);
    if (!fiberToIDMap.has(primaryFiber)) {
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      primaryFibers.delete(primaryFiber);
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    }
    const id = getFiberID(primaryFiber);
    if (isRoot) {
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      pendingUnmountedRootID = id;
    } else if (!shouldFilterFiber(fiber)) {
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