[llvm] [BOLT] pacret-scanner: fix regression tests... (PR #128565)

[Kristof Beyls via llvm-commits]

kbeyls wrote:

> Thanks for your work on this! I'm still getting the following failure:

Thank you for reporting that @alanzhao1 ! I also noticed. Apparently something changed in how BOLT computes basic blocks between when I created my original pull request and when the PR got merged. Luckily, this should be easily fixable by adapting the regression test. I've done so in PR #128576. I'll be merging that in a minute.

https://github.com/llvm/llvm-project/pull/128565