**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)


code: normalizeIndent`
        function MyComponent({foo}) {
          return useMemo(() => foo, [foo])
        }
      `,
    },
    {
      code: normalizeIndent`
        function MyComponent() {
          const foo = true ? "fine" : "also fine";
          return useMemo(() => foo, [foo]);
        }
      `,
    },
  ],
  invalid: [
    {
      code: normalizeIndent`
        function MyComponent(props) {
          useCallback(() => {
            console.log(props.foo?.toString());
          }, []);
        }
      `,
      errors: [
        {
          message:
            "React Hook useCallback has a missing dependency: 'props.foo'. " +
            'Either include it or remove the dependency array.',
          suggestions: [