Copilot Rename Suggestions: No suggestions for identifiers referenced in methods that touch the end of file

[AmadeusW]

Version Used: 17.12 main

Steps to Reproduce:

1. Create a class whose ending bracket is the last character of the file (there is no newline at the end of file)
2. Attempt to get rename suggestions
3. Observe that nothing happens.
   

Workaround:
Add newline at the end of file:

This issue was introduced with #73873
Please assign to me (if possible), I'll create a PR with fix