[clang-tools-extra] [clangd] Add tweak to abbreviate function templates (PR #74710)

[via cfe-commits]

https://github.com/timon-ul requested changes to this pull request.

In general I agree with @JVApen that I also would prefer this being integrated into clang-tidy instead. So while I am a bit unhappy about that, at the very least I would want a comment anywhere in this code that this should probably in the future be moved there.

https://github.com/llvm/llvm-project/pull/74710