[llvm] [llvm][SystemZ] Set comment stream in SystemZDisassembler::getInstruction (PR #148614)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64le-rhel` running on `ppc64le-clang-rhel-test` while building `llvm` at step 7 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/145/builds/8359

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

```
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
...
0.192 [1/3/2] Building CXX object compiler-rt/lib/ubsan/CMakeFiles/RTUbsan_dynamic_version_script_dummy.powerpc64le.dir/dummy.cpp.o
0.420 [0/3/3] Linking CXX shared library /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/lib/clang/21/lib/powerpc64le-unknown-linux-gnu/libclang_rt.ubsan_standalone.so
0.447 [0/2/4] Linking CXX shared library /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/lib/clang/21/lib/powerpc64le-unknown-linux-gnu/libclang_rt.asan.so
1.105 [0/1/5] Generating /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/compile_commands.json
24.219 [4/2/1224] cd /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/runtimes/runtimes-bins && /home/buildbots/llvm-external-buildbots/cmake-3.31.2/bin/cmake --build /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/runtimes/runtimes-bins/ --target runtimes-test-depends --config Release
ninja: no work to do.
24.287 [3/2/1225] No install step for 'runtimes'
24.311 [2/2/1227] Completed 'runtimes'
25.726 [2/1/1228] Building CXX object unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/SystemZMCDisassemblerTest.cpp.o
25.773 [1/1/1229] Linking CXX executable unittests/MC/SystemZ/SystemZMCTests
FAILED: unittests/MC/SystemZ/SystemZMCTests 
: && /home/buildbots/llvm-external-buildbots/clang.19.1.7/bin/clang++ --gcc-toolchain=/gcc-toolchain/usr -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -Wl,--color-diagnostics     -Wl,--gc-sections  -Xlinker --dependency-file=unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/link.d unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/SystemZAsmLexerTest.cpp.o unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/SystemZMCDisassemblerTest.cpp.o -o unittests/MC/SystemZ/SystemZMCTests  -Wl,-rpath,/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/lib  lib/libLLVMSystemZCodeGen.so.21.0git  lib/libLLVMSystemZAsmParser.so.21.0git  lib/libLLVMSystemZDisassembler.so.21.0git  lib/libllvm_gtest_main.so.21.0git  lib/libllvm_gtest.so.21.0git  -lpthread  lib/libLLVMMCParser.so.21.0git  lib/libLLVMSystemZDesc.so.21.0git  lib/libLLVMSystemZInfo.so.21.0git  lib/libLLVMMC.so.21.0git  lib/libLLVMTargetParser.so.21.0git  lib/libLLVMSupport.so.21.0git  -Wl,-rpath-link,/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/lib && :
ld.lld: error: undefined symbol: llvm::MCDisassembler::setSymbolizer(std::unique_ptr<llvm::MCSymbolizer, std::default_delete<llvm::MCSymbolizer>>)
>>> referenced by SystemZMCDisassemblerTest.cpp
>>>               unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/SystemZMCDisassemblerTest.cpp.o:(SystemZDisassembler_SystemZMCSymbolizerTest_Test::TestBody())

ld.lld: error: undefined symbol: llvm::MCSymbolizer::~MCSymbolizer()
>>> referenced by SystemZMCDisassemblerTest.cpp
>>>               unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/SystemZMCDisassemblerTest.cpp.o:((anonymous namespace)::SystemZMCSymbolizerTest::~SystemZMCSymbolizerTest())
>>> referenced by SystemZMCDisassemblerTest.cpp
>>>               unittests/MC/SystemZ/CMakeFiles/SystemZMCTests.dir/SystemZMCDisassemblerTest.cpp.o:(vtable for (anonymous namespace)::SystemZMCSymbolizerTest)
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/148614