[llvm] [Transforms][NFC] Tiny fixes in SplitModule (PR #95903)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-windows` running on `sanitizer-windows` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/107/builds/587

Here is the relevant piece of the build log for the reference:
```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/sanitizer-windows.py ...' (failure)
...
[18/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\InterpBuiltin.cpp.obj
[19/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Context.cpp.obj
[20/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\EvalEmitter.cpp.obj
[21/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Compiler.cpp.obj
[22/30] Building CXX object lib\CodeGen\AsmPrinter\CMakeFiles\LLVMAsmPrinter.dir\AsmPrinter.cpp.obj
[23/30] Linking CXX static library lib\LLVMAsmPrinter.lib
[24/30] Building CXX object lib\LTO\CMakeFiles\LLVMLTO.dir\LTO.cpp.obj
[25/30] Linking CXX static library lib\LLVMLTO.lib
[26/30] Linking CXX executable bin\lld.exe
[27/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Disasm.cpp.obj
command timed out: 1200 seconds without output running ['python', '../llvm-zorg/zorg/buildbot/builders/annotated/sanitizer-windows.py', '--jobs=16'], attempting to kill
program finished with exit code 1
elapsedTime=1273.595000
Step 7 (stage 1 build) failure: stage 1 build (failure)
@@@BUILD_STEP stage 1 build@@@
Running: ninja -j 16 compiler-rt
[1/2] Building CXX object projects\compiler-rt\lib\asan\CMakeFiles\RTAsan_dynamic_version_script_dummy.x86_64.dir\dummy.cpp.obj
[2/2] Linking CXX shared library lib\clang\19\lib\windows\clang_rt.asan_dynamic-x86_64.dll
Running: ninja -j 16 clang lld
[1/30] Building Opcodes.inc...
[2/30] Generating VCSRevision.h
[3/30] Generating VCSVersion.inc
[4/30] Building CXX object tools\clang\lib\Basic\CMakeFiles\obj.clangBasic.dir\Version.cpp.obj
[5/30] Building CXX object lib\Transforms\Utils\CMakeFiles\LLVMTransformUtils.dir\SplitModule.cpp.obj
[6/30] Building CXX object lib\Object\CMakeFiles\LLVMObject.dir\IRSymtab.cpp.obj
[7/30] Linking CXX static library lib\LLVMObject.lib
[8/30] Linking CXX static library lib\LLVMTransformUtils.lib
[9/30] Building CXX object lib\Transforms\Scalar\CMakeFiles\LLVMScalarOpts.dir\CorrelatedValuePropagation.cpp.obj
[10/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Function.cpp.obj
[11/30] Linking CXX static library lib\LLVMScalarOpts.lib
[12/30] Generating VCSVersion.inc
[13/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Program.cpp.obj
[14/30] Linking CXX static library lib\clangBasic.lib
[15/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\ByteCodeEmitter.cpp.obj
[16/30] Building CXX object tools\lld\Common\CMakeFiles\lldCommon.dir\Version.cpp.obj
[17/30] Linking CXX static library lib\lldCommon.lib
[18/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\InterpBuiltin.cpp.obj
[19/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Context.cpp.obj
[20/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\EvalEmitter.cpp.obj
[21/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Compiler.cpp.obj
[22/30] Building CXX object lib\CodeGen\AsmPrinter\CMakeFiles\LLVMAsmPrinter.dir\AsmPrinter.cpp.obj
[23/30] Linking CXX static library lib\LLVMAsmPrinter.lib
[24/30] Building CXX object lib\LTO\CMakeFiles\LLVMLTO.dir\LTO.cpp.obj
[25/30] Linking CXX static library lib\LLVMLTO.lib
[26/30] Linking CXX executable bin\lld.exe
[27/30] Building CXX object tools\clang\lib\AST\CMakeFiles\obj.clangAST.dir\Interp\Disasm.cpp.obj

command timed out: 1200 seconds without output running ['python', '../llvm-zorg/zorg/buildbot/builders/annotated/sanitizer-windows.py', '--jobs=16'], attempting to kill
program finished with exit code 1
elapsedTime=1273.595000

```

https://github.com/llvm/llvm-project/pull/95903