[llvm] [X86] Recognize POP/ADD/SUB modifying rsp in getSPAdjust. (PR #114265)

[Daniel Zabawa via llvm-commits]

daniel-zabawa wrote:

pinging @RKSimon @phoebewang for review

I have still not resolved the linux failure, but I believe it's unrelated. The only failed tests are in lldb-dap:
```
_bk;t=1730412997573 FAIL: LLDB (/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-9dkps-1/llvm-project/github-pull-requests/build/bin/clang-x86_64) :: test_repl_evaluate_expressions (TestDAP_evaluate.TestDAP_evaluate)
_bk;t=1730412997573 FAIL: LLDB (/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-9dkps-1/llvm-project/github-pull-requests/build/bin/clang-x86_64) :: test_repl_evaluate_expressions (TestDAP_evaluate.TestDAP_evaluate)
```

but these are also reported as unresolved in the summary.

https://github.com/llvm/llvm-project/pull/114265