[llvm] [BOLT][binary-analysis] Fix pac-ret scanner's "major limitation" (PR #136664)

[Paschalis Mpeis via llvm-commits]

Gergely =?utf-8?q?Bálint?=,Gergely Balint <gergely.balint at arm.com>,Gergely
 Balint <gergely.balint at arm.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/136664 at github.com>


https://github.com/paschalis-mpeis requested changes to this pull request.

Noting that this new behavior is triggered on 39 tests on AArch64, causing all to fail.
It will have to be addressed before proceeding.

```
Total Discovered Tests: 547
  Skipped          :  13 (2.38%)
  Unsupported      :  81 (14.81%)
  Passed           : 413 (75.50%)
  Expectedly Failed:   1 (0.18%)
  Failed           :  39 (7.13%)
```

https://github.com/llvm/llvm-project/pull/136664