Why is that something AI has to do? PhpStorm does this, without Ai, since forever ago. And updates references everywhere, even inside strings or doc comments.
Secondly, it was just one example that came to me from comparing this the other day. You could compile a long list of examples where Cursor gives better completions than Zed does.
I know that days of yak-shaving with LSP and emacs only gets me to a janky imitation of Visual Studio/XCode semantic search on my C++ work codebase. "Fuck it, let an LLM auto-complete based on vibes" has some appeal when you just get sick of trying to arm-wrestle clangd into ... whatever XCode or Visual Studio are doing to have functional semantic search across the project.
Although I have to say LLMs were a disaster at vibe-auto-completing in VSCode. So I mostly stick with semantic search in the IDE and editing in emacs like I always have.