[llvm] [llvm-ml] make TEXTEQU directive not to eagerly expand macros in arguments (PR #209526)

[Nico Weber via llvm-commits]

nico wrote:

> LLVM Buildbot has detected a new failure on builder `amdgpu-hip-blender` running on `AMD-bb-w-04` while building `llvm` at step 3 "annotate".
> 
> Full details are available at: https://lab.llvm.org/buildbot/#/builders/232/builds/4350

```
FAILED: External/HIP/multi_output-2-hip-7.1.1 
: && /home/botworker/bbot/hip-blender/botworker/amdgpu-hip-blender/llvm/bin/clang++ -O3 -DNDEBUG  External/HIP/CMakeFiles/multi_output-2-hip-7.1.1.dir/multi_output.hip.o -o External/HIP/multi_output-2-hip-7.1.1  --rocm-path=/opt/botworker/llvm/External/hip/rocm-7.1.1 --hip-link -rtlib=compiler-rt -unwindlib=libgcc -frtlib-add-rpath && cd /home/botworker/bbot/hip-blender/botworker/amdgpu-hip-blender/test-suite-build/External/HIP && /usr/local/therock-tools/bin/cmake -E create_symlink /home/botworker/bbot/hip-blender/llvm-test-suite/External/HIP/multi_output.reference_output /home/botworker/bbot/hip-blender/botworker/amdgpu-hip-blender/test-suite-build/External/HIP/multi_output.reference_output-hip-7.1.1
CMake Error: failed to create symbolic link '/home/botworker/bbot/hip-blender/botworker/amdgpu-hip-blender/test-suite-build/External/HIP/multi_output.reference_output-hip-7.1.1': File exists
```

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https://github.com/llvm/llvm-project/pull/209526