Revert "gpui: Unify the index_for_x methods (#42162)" (#42505)
This reverts commit 082b80ec89748bf238f0068da80e12211fb3c7d6.
This broke clicking, e.g. in snippets like
```rs
let x = vec![
1, 2, //
3,
];
```
clicking between `2` and `,` is quite off now.
Release Notes:
- N/A
ddf762e368Kirill Bulatov committed on 11/12/2025, 8:24:06 AM· committed by GitHubparentf2cadad