feat: Warn the user when a rename will change the meaning of the program #19079
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Specifically, when a rename of a local will change some code that refers it to refer another local, or some code that refer another local to refer to it.
We do it by introducing a dummy edit with an annotation. I'm not a fond of this approach, but I don't think LSP has a better way.
Demo:
Screen.Recording.2025-02-02.015127.mp4
Closes #10713.