eslint-plugin-react-hooks version: 4.2.0

## Steps To Reproduce

I know it shouldn't exist in production code, but it's annoying while editing some files.

```js
import React, { useEffect } from "react";

const App = () => {
  useEffect(); // <-
  return null;
};

export default App;
```

Link to code example: https://codesandbox.io/s/polished-sun-3wr27?file=/src/App.js

## The current behavior

ESLint crashed.

```
TypeError: Cannot read property 'type' of undefined
```

## The expected behavior

ESLint doesn't crash but reports an error instead.
maybeID = maybeID.object || maybeID.expression.object;
          }
          const isDeclaredInComponent = !componentScope.through.some(
            ref => ref.identifier === maybeID,
          );
          
          declaredDependencies.push({
            key: declaredDependency,
            node: declaredDependencyNode,
          });
          if (!isDeclaredInComponent) {
            externalDependencies.add(declaredDependency);
          }
        });
      }
      const {
        suggestedDependencies,
        unnecessaryDependencies,
        missingDependencies,
        duplicateDependencies,
      } = collectRecommendations({
        dependencies,
        declaredDependencies,
        stableDependencies,
        externalDependencies,
        isEffect,
      });
      let suggestedDeps = suggestedDependencies;
      const problemCount =
        duplicateDependencies.size +