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.
isEffect &&
            
            dependencyNode.type === 'Identifier' &&
            (dependencyNode.parent.type === 'MemberExpression' ||
              dependencyNode.parent.type === 'OptionalMemberExpression') &&
            !dependencyNode.parent.computed &&
            dependencyNode.parent.property.type === 'Identifier' &&
            dependencyNode.parent.property.name === 'current' &&
            
            isInsideEffectCleanup(reference)
          ) {
            currentRefsInEffectCleanup.set(dependency, {
              reference,
              dependencyNode,
            });
          }
          if (
            dependencyNode.parent.type === 'TSTypeQuery' ||
            dependencyNode.parent.type === 'TSTypeReference'
          ) {
            continue;
          }
          const def = reference.resolved.defs[0];
          if (def == null) {
            continue;
          }
          
          if (def.node != null && def.node.init === node.parent) {
            continue;