**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)


default:
              throw new Error('Unknown case.');
          }
        }
      }
      reportProblem({
        node: declaredDependenciesNode,
        message:
          `React Hook ${context.getSource(reactiveHook)} has ` +
          
          (getWarningMessage(missingDependencies, 'a', 'missing', 'include') ||
            getWarningMessage(
              unnecessaryDependencies,
              'an',
              'unnecessary',
              'exclude',
            ) ||
            getWarningMessage(
              duplicateDependencies,
              'a',
              'duplicate',
              'omit',
            )) +
          extraWarning,
        suggest: [
          {
            desc: `Update the dependencies array to be: [${suggestedDeps
              .map(formatDependency)
              .join(', ')}]`,
            fix(fixer) {