[llvm] [FileCheck] Fix --enable-var-scope for numvars after reassignment (PR #157158)

[James Henderson via llvm-commits]

jh7370 wrote:

@Clipi-12, I've added a couple of people as reviewers who have done a lot of FileCheck stuff. In general, the best way to find possible reviewers is to look at past changes in the same area and ping the contributor and reviewer(s) for the previous patches.

I haven't looked at the change itself, but a couple of things to note:

- By default in LLVM, the PR description and title is used as the commit description and title. You may want to remove the first bit of your description (about this being your first commit etc) and move it into a PR comment for posterity's sake.
- You need to have a public GitHub email address to have commits merged into LLVM. See https://llvm.org/docs/DeveloperPolicy.html#email-addresses.

https://github.com/llvm/llvm-project/pull/157158