[clang] [llvm] [PowerPC][AIX] Support #pragma comment copyright for AIX (PR #178184)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-windows` running on `linaro-armv8-windows-msvc-05` while building `clang,llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/141/builds/19736

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/3/12 (2579 of 2588)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/4/12 (2580 of 2588)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/5/12 (2581 of 2588)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/6/12 (2582 of 2588)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/7/12 (2583 of 2588)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/8/12 (2584 of 2588)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/9/12 (2585 of 2588)
PASS: lldb-unit :: tools/lldb-server/tests/./LLDBServerTests.exe/0/2 (2586 of 2588)
PASS: lldb-unit :: tools/lldb-server/tests/./LLDBServerTests.exe/1/2 (2587 of 2588)
TIMEOUT: lldb-api :: python_api/thread/TestThreadAPI.py (2588 of 2588)
******************** TEST 'lldb-api :: python_api/thread/TestThreadAPI.py' FAILED ********************
Script:
--
C:/Users/tcwg/scoop/apps/python/current/python.exe C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/llvm-project/lldb\test\API\dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./lib --env LLVM_INCLUDE_DIR=C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/include --env LLVM_TOOLS_DIR=C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin --triple aarch64-pc-windows-msvc --build-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build --lldb-module-cache-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build/module-cache-lldb\lldb-api --clang-module-cache-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build/module-cache-clang\lldb-api --executable C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/lldb.exe --lldb-python-dir C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\Lib\site-packages --compiler C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/clang.exe --dsymutil C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/dsymutil.exe --make C:/Users/tcwg/scoop/shims/make.exe --llvm-tools-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin --lldb-obj-root C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/tools/lldb --lldb-libs-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./lib --cmake-build-type Release --skip-category=watchpoint --env LLDB_LAUNCH_FLAG_USE_PIPES=1 C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\test\API\python_api\thread -p TestThreadAPI.py
--
Exit Code: 15
Timeout: Reached timeout of 600 seconds

Command Output (stderr):
--
UNSUPPORTED: LLDB (C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\bin\clang.exe-aarch64) :: test_StepInstruction_dsym (TestThreadAPI.ThreadAPITestCase.test_StepInstruction_dsym) (test case does not fall in any category of interest for this run) 


--

********************
********************
Timed Out Tests (1):
  lldb-api :: python_api/thread/TestThreadAPI.py


Testing Time: 1256.80s

Total Discovered Tests: 33968
  Skipped          :    21 (0.06%)
  Unsupported      :   976 (2.87%)
  Passed           : 32896 (96.84%)
  Expectedly Failed:    74 (0.22%)
  Timed Out        :     1 (0.00%)
FAILED: [code=1] tools/lldb/test/CMakeFiles/check-lldb C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/tools/lldb/test/CMakeFiles/check-lldb 
C:\WINDOWS\system32\cmd.exe /C "cd /D C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\tools\lldb\test && C:\Users\tcwg\scoop\apps\python\current\python.exe C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/llvm-lit.py -v C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/tools/lldb/test"
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/178184