[llvm] [ORC] Add LoadRelocatableObject: universal binary support, clearer er… (PR #104406)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-m68k-linux-cross` running on `suse-gary-m68k-cross` while building `llvm` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/27/builds/251

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/Generic/MachO_universal_binaries.test' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/llc -filetype=obj -mtriple x86_64-apple-macosx -o /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/test/ExecutionEngine/JITLink/Generic/Output/MachO_universal_binaries.test.tmp.x86-64.o    /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/llvm/test/ExecutionEngine/JITLink/Generic/Inputs/main-ret-0.ll
+ /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/llc -filetype=obj -mtriple x86_64-apple-macosx -o /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/test/ExecutionEngine/JITLink/Generic/Output/MachO_universal_binaries.test.tmp.x86-64.o /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/llvm/test/ExecutionEngine/JITLink/Generic/Inputs/main-ret-0.ll
RUN: at line 3: /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/llc -filetype=obj -mtriple arm64-apple-macosx -o /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/test/ExecutionEngine/JITLink/Generic/Output/MachO_universal_binaries.test.tmp.arm64.o    /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/llvm/test/ExecutionEngine/JITLink/Generic/Inputs/main-ret-0.ll
+ /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/llc -filetype=obj -mtriple arm64-apple-macosx -o /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/test/ExecutionEngine/JITLink/Generic/Output/MachO_universal_binaries.test.tmp.arm64.o /srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/llvm/test/ExecutionEngine/JITLink/Generic/Inputs/main-ret-0.ll
/srv/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/llc: error: unable to get target for 'arm64-apple-macosx', see --version and --triple.
--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/104406