[llvm] [llvm-mt] Use XmlDeleter to free xmlFreeDoc (PR #128472)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime` running on `omp-vega20-0` while building `llvm` at step 5 "compile-openmp".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/30/builds/16333

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

```
Step 5 (compile-openmp) failure: build (failure)
...
1.518 [3493/14/857] Linking CXX static library lib/libLLVMRemarks.a
1.518 [3490/16/858] Linking CXX static library lib/libLLVMDebugInfoBTF.a
1.519 [3490/15/859] Building CXX object examples/IRTransforms/CMakeFiles/ExampleIRTransforms.dir/SimplifyCFG.cpp.o
1.519 [3489/15/860] Linking CXX static library lib/libLLVMOrcShared.a
1.520 [3489/14/861] Building CXX object examples/Bye/CMakeFiles/Bye.dir/Bye.cpp.o
1.521 [3488/14/862] Building CXX object unittests/Passes/Plugins/DoublerPlugin/CMakeFiles/DoublerPlugin.dir/DoublerPlugin.cpp.o
1.521 [3487/14/863] Building CXX object unittests/Passes/Plugins/TestPlugin/CMakeFiles/TestPlugin.dir/TestPlugin.cpp.o
1.522 [3486/14/864] Building CXX object unittests/Analysis/InlineOrderPlugin/CMakeFiles/InlineOrderPlugin.dir/InlineOrderPlugin.cpp.o
1.524 [3485/14/865] Linking CXX static library lib/libLLVMTableGenCommon.a
1.525 [3485/13/866] Building CXX object lib/WindowsManifest/CMakeFiles/LLVMWindowsManifest.dir/WindowsManifestMerger.cpp.o
FAILED: lib/WindowsManifest/CMakeFiles/LLVMWindowsManifest.dir/WindowsManifestMerger.cpp.o 
ccache /usr/bin/c++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/lib/WindowsManifest -I/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/llvm/lib/WindowsManifest -I/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/include -I/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT lib/WindowsManifest/CMakeFiles/LLVMWindowsManifest.dir/WindowsManifestMerger.cpp.o -MF lib/WindowsManifest/CMakeFiles/LLVMWindowsManifest.dir/WindowsManifestMerger.cpp.o.d -o lib/WindowsManifest/CMakeFiles/LLVMWindowsManifest.dir/WindowsManifestMerger.cpp.o -c /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/llvm/lib/WindowsManifest/WindowsManifestMerger.cpp
/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/llvm/lib/WindowsManifest/WindowsManifestMerger.cpp:679:78: error: definition of implicitly-declared ‘llvm::windows_manifest::WindowsManifestMerger::WindowsManifestMergerImpl::~WindowsManifestMergerImpl()’
  679 | WindowsManifestMerger::WindowsManifestMergerImpl::~WindowsManifestMergerImpl() {
      |                                                                              ^
/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/llvm/lib/WindowsManifest/WindowsManifestMerger.cpp:679:1: error: ‘class llvm::windows_manifest::WindowsManifestMerger::WindowsManifestMergerImpl’ is private within this context
  679 | WindowsManifestMerger::WindowsManifestMergerImpl::~WindowsManifestMergerImpl() {
      | ^~~~~~~~~~~~~~~~~~~~~
/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/llvm/lib/WindowsManifest/WindowsManifestMerger.cpp:33:30: note: declared private here
   33 | class WindowsManifestMerger::WindowsManifestMergerImpl {
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~
1.547 [3485/12/867] Linking CXX shared library lib/libRemarks.so.21.0git
1.557 [3485/11/868] Building riscv_vector_builtin_cg.inc...
1.588 [3485/10/869] Linking CXX shared module unittests/Analysis/InlineAdvisorPlugin.so
1.593 [3485/9/870] Linking CXX shared module unittests/Passes/Plugins/DoublerPlugin.so
1.595 [3485/8/871] Linking CXX shared module lib/Bye.so
1.596 [3485/7/872] Linking CXX shared module lib/ExampleIRTransforms.so
1.604 [3485/6/873] Linking CXX shared module unittests/Analysis/InlineOrderPlugin.so
1.605 [3485/5/874] Linking CXX shared module unittests/Passes/Plugins/TestPlugin.so
1.657 [3485/4/875] Building ARMTargetParserDef.inc...
1.681 [3485/3/876] Linking CXX executable bin/llvm-opt-report
1.706 [3485/2/877] Linking CXX executable bin/llvm-remarkutil
1.850 [3485/1/878] Linking CXX executable bin/llvm-tblgen
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/128472