**Packages**
* `"react": "^16.13.1"`
* `"eslint-plugin-react-hooks": "^4.0.8"`

The issue #18819 still happens with `eslint-plugin-react-hooks@4.0.8`.

Using the example code from the other issue gives the following errors:

![image](https://user-images.githubusercontent.com/37122343/90794940-59d9a980-e305-11ea-9ec0-98f69b41c280.png)

![image](https://user-images.githubusercontent.com/37122343/90795019-770e7800-e305-11ea-92b8-b64407b0b22c.png)


`,
    `
      // Valid because hooks can be used in anonymous function arguments to
      // forwardRef.
      const FancyButton = forwardRef(function (props, ref) {
        useHook();
        return <button {...props} ref={ref} />
      });
    `,
    `
      // Valid because hooks can be used in anonymous function arguments to
      // React.memo.
      const MemoizedFunction = React.memo(props => {
        useHook();
        return <button {...props} />
      });
    `,
    `
      // Valid because hooks can be used in anonymous function arguments to
      // memo.
      const MemoizedFunction = memo(function (props) {
        useHook();
        return <button {...props} />
      });
    `,
    `
      // Valid because classes can call functions.
      // We don't consider these to be hooks.
      class C {
        m() {