[llvm] Add unit tests for size returning new funcs in the MemProf use pass. (PR #105473)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime-2` running on `rocm-worker-hw-02` while building `llvm` at step 8 "Add check check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/10/builds/151

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

```
Step 8 (Add check check-llvm) failure: test (failure)
...
[646/654] Linking CXX executable unittests/Target/AMDGPU/AMDGPUTests
[647/654] Linking CXX executable unittests/Support/SupportTests
[648/654] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/CoverageMappingTest.cpp.o
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/llvm/unittests/ProfileData/CoverageMappingTest.cpp: In member function ‘virtual void {anonymous}::CoverageMappingTest_TVIdxBuilder_Test::TestBody()’:
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/llvm/unittests/ProfileData/CoverageMappingTest.cpp:1116:10: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
 1116 |       if (Node.NextIDs[C] < 0)
      |          ^
[649/654] Building CXX object unittests/Transforms/Instrumentation/CMakeFiles/InstrumentationTests.dir/MemProfilerTest.cpp.o
[650/654] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/MemProfTest.cpp.o
[651/654] Linking CXX executable unittests/Transforms/Instrumentation/InstrumentationTests
FAILED: unittests/Transforms/Instrumentation/InstrumentationTests 
: && /usr/bin/c++ -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 -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -Wl,--gc-sections unittests/Transforms/Instrumentation/CMakeFiles/InstrumentationTests.dir/PGOInstrumentationTest.cpp.o unittests/Transforms/Instrumentation/CMakeFiles/InstrumentationTests.dir/MemProfilerTest.cpp.o -o unittests/Transforms/Instrumentation/InstrumentationTests  -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/lib  lib/libLLVMPasses.so.20.0git  lib/libllvm_gtest_main.so.20.0git  lib/libLLVMTestingSupport.so.20.0git  lib/libLLVMInstrumentation.so.20.0git  lib/libLLVMAnalysis.so.20.0git  lib/libLLVMAsmParser.so.20.0git  lib/libLLVMCore.so.20.0git  lib/libllvm_gtest.so.20.0git  lib/libLLVMSupport.so.20.0git  -Wl,-rpath-link,/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/lib && :
/usr/bin/ld: unittests/Transforms/Instrumentation/CMakeFiles/InstrumentationTests.dir/MemProfilerTest.cpp.o: undefined reference to symbol '_ZTVN4llvm20IndexedMemProfReaderE'
/usr/bin/ld: /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/lib/libLLVMProfileData.so.20.0git: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
[652/654] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/InstrProfTest.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/105473