Add Ruby method visibility in outline view (#7954)

Release Notes:

- Improved ([#7849
](https://github.com/zed-industries/zed/issues/7849)).

<img width="897" alt="image"
src="https://github.com/zed-industries/zed/assets/7274458/a2b0db84-1971-45c0-a5a2-68de651e342b">

Ben Hamment committed 2y ago

1e44bac4182244642130156d6d9d0407cfd87d8b

Parent: aad7761

Committed by GitHub <noreply@github.com> on 2/20/2024, 2:26:04 AM