Using `react-refresh/babel` 0.4.0 is giving me this error on a large number of files:

```
ERROR in ../orbit-app/src/hooks/useStores.ts
Module build failed (from ../node_modules/babel-loader/lib/index.js):
TypeError: Cannot read property '0' of undefined
    at Function.get (/Users/nw/projects/motion/orbit/node_modules/@babel/traverse/lib/path/index.js:115:33)
    at NodePath.unshiftContainer (/Users/nw/projects/motion/orbit/node_modules/@babel/traverse/lib/path/modification.js:191:31)
    at PluginPass.exit (/Users/nw/projects/motion/orbit/node_modules/react-refresh/cjs/react-refresh-babel.development.js:546:28)
```

I narrowed down that file to the simplest thing that causes it:

```
import { useContext } from 'react'

export default () => useContext()
```

_Originally posted by @natew in https://github.com/facebook/react/issues/16604#issuecomment-528708174_
`
        import {useFancyState} from './hooks';
        
        export default function App() {
          const bar = useFancyState();
          return <h1>{bar}</h1>;
        }
    `,
        {
          plugins: ['transform-es2015-modules-commonjs'],
        },
      ),
    ).toMatchSnapshot();
  });
  it('generates valid signature for exotic ways to call Hooks', () => {
    expect(
      transform(`
        import FancyHook from 'fancy';
        export default function App() {
          function useFancyState() {
            const [foo, setFoo] = React.useState(0);
            useFancyEffect();
            return foo;
          }
          const bar = useFancyState();
          const baz = FancyHook.useThing();
          React.useState();
          useThePlatform();
          return <h1>{bar}{baz}</h1>;
        }