[llvm] [SandboxIR][NFC] GenericSetter tracker class (PR #102260)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-darwin` running on `doug-worker-3` while building `llvm` at step 2 "checkout".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/23/builds/1735

Here is the relevant piece of the build log for the reference:
```
Step 2 (checkout) failure: update (failure)
git version 2.39.3 (Apple Git-146)
fatal: unable to access 'https://github.com/llvm/llvm-project.git/': Failed to connect to github.com port 443 after 75089 ms: Couldn't connect to server
fatal: unable to access 'https://github.com/llvm/llvm-project.git/': Failed to connect to github.com port 443 after 75159 ms: Couldn't connect to server

```

https://github.com/llvm/llvm-project/pull/102260