Abstract property implementations code lens is not working

> In addition to this, implementations aren't discovered when inspecting the abstract property.
> 
> <img width="432" height="177" alt="Image" src="https://github.com/user-attachments/assets/1835ea74-133b-45b1-b2c5-d5000372ef06" /> 

 _Originally posted by @ItsFrankieD in [#3251](https://github.com/bmewburn/vscode-intelephense/issues/3251#issuecomment-3774771264)_