[llvm] [llvm][MetadataLoader] Make sure we correctly load DW_APPLE_ENUM_KIND from bitcode (PR #132374)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-ubuntu` running on `linaro-lldb-aarch64-ubuntu` while building `llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/59/builds/14740

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

```
Step 6 (test) failure: build (failure)
...
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/TestDataFormatterObjCNSURL.py (349 of 2109)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/TestDataFormatterObjCPlain.py (350 of 2109)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/TestDataFormatterObjNSException.py (351 of 2109)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/cmtime/TestDataFormatterCMTime.py (352 of 2109)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/nsindexpath/TestDataFormatterNSIndexPath.py (353 of 2109)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/nsstring/TestDataFormatterNSString.py (354 of 2109)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-proper-plurals/TestFormattersOneIsSingular.py (355 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-ptr-to-array/TestPtrToArrayFormatting.py (356 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-script/TestDataFormatterScript.py (357 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-smart-array/TestDataFormatterSmartArray.py (358 of 2109)
FAIL: lldb-api :: functionalities/data-formatter/data-formatter-skip-summary/TestDataFormatterSkipSummary.py (359 of 2109)
******************** TEST 'lldb-api :: functionalities/data-formatter/data-formatter-skip-summary/TestDataFormatterSkipSummary.py' FAILED ********************
Script:
--
/usr/bin/python3.10 /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --arch aarch64 --build-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex --lldb-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/lldb --compiler /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/clang --dsymutil /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --lldb-obj-root /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb --lldb-libs-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/functionalities/data-formatter/data-formatter-skip-summary -p TestDataFormatterSkipSummary.py
--
Exit Code: -11

Command Output (stdout):
--
lldb version 21.0.0git (https://github.com/llvm/llvm-project.git revision a27da0a20cbfb9f0c600d53bf2520f068b222f59)
  clang revision a27da0a20cbfb9f0c600d53bf2520f068b222f59
  llvm revision a27da0a20cbfb9f0c600d53bf2520f068b222f59
Skipping the following test categories: ['libc++', 'dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang-aarch64) :: test_with_run_command_dsym (TestDataFormatterSkipSummary.SkipSummaryDataFormatterTestCase) (test case does not fall in any category of interest for this run) 
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang-aarch64) :: test_with_run_command_dwarf (TestDataFormatterSkipSummary.SkipSummaryDataFormatterTestCase)
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang-aarch64) :: test_with_run_command_dwo (TestDataFormatterSkipSummary.SkipSummaryDataFormatterTestCase)
----------------------------------------------------------------------
Ran 3 tests in 0.987s

OK (skipped=1)

--

********************
PASS: lldb-api :: functionalities/data-formatter/data-formatter-python-synth/TestDataFormatterPythonSynth.py (360 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/coroutine_handle/TestCoroutineHandle.py (361 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/list/loop/TestDataFormatterGenericListLoop.py (362 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/bitset/TestDataFormatterGenericBitset.py (363 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/deque/TestDataFormatterGenericDeque.py (364 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/list/TestDataFormatterGenericList.py (365 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/multimap/TestDataFormatterGenericMultiMap.py (366 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/optional/TestDataFormatterGenericOptional.py (367 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/generic/multiset/TestDataFormatterGenericMultiSet.py (368 of 2109)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-stl/libcxx-simulators/optional/TestDataFormatterLibcxxOptionalSimulator.py (369 of 2109)

```

</details>

https://github.com/llvm/llvm-project/pull/132374