Ensure that barrel files behind wildcards are transformed into shortpath (#54951)
This fix ensures the case that if you `import { foo } from './index'`,
where:
index.js:
```js
export * from './subpkg'
```
subpkg.js:
```js
const unrelatedExpressions = ...
export { foo } from './foo'
export { bar } from './bar'
```
Previously we'll transform the proxy to the second module to `export {
foo } from './subpkg'`. With this fix it will be correctly optimized as
`export { foo } from './foo'` which is a shorter path.