[llvm] [CodeGen] Introduce `MachineDomTreeUpdater` (PR #95369)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `cross-project-tests-sie-ubuntu-dwarf5` running on `doug-worker-1b` while building `llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/163/builds/689

Here is the relevant piece of the build log for the reference:
```
Step 5 (build-unified-tree) failure: build (failure)
...
100.499 [4066/8/783] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LiveRangeEdit.cpp.o
104.734 [4065/8/784] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LoopTraversal.cpp.o
105.901 [4064/8/785] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LiveIntervals.cpp.o
107.239 [4063/8/786] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LocalStackSlotAllocation.cpp.o
107.418 [4062/8/787] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LiveVariables.cpp.o
108.339 [4061/8/788] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LiveDebugVariables.cpp.o
110.037 [4060/8/789] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBranchProbabilityInfo.cpp.o
112.905 [4059/8/790] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBlockFrequencyInfo.cpp.o
115.574 [4058/8/791] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineCFGPrinter.cpp.o
116.238 [4057/8/792] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBlockPlacement.cpp.o
FAILED: lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBlockPlacement.cpp.o 
/opt/ccache/bin/g++ -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/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/build/lib/CodeGen -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/lib/CodeGen -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/build/include -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/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 -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBlockPlacement.cpp.o -MF lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBlockPlacement.cpp.o.d -o lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBlockPlacement.cpp.o -c /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/lib/CodeGen/MachineBlockPlacement.cpp
In file included from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/lib/CodeGen/MachineBlockPlacement.cpp:44:
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/include/llvm/CodeGen/MachinePostDominators.h:53:3: error: ‘llvm::MachinePostDominatorTree::MachinePostDominatorTree(llvm::MachineFunction&)’ cannot be overloaded with ‘llvm::MachinePostDominatorTree::MachinePostDominatorTree(llvm::MachineFunction&)’
   53 |   MachinePostDominatorTree(MachineFunction &MF) { recalculate(MF); }
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/include/llvm/CodeGen/MachinePostDominators.h:51:12: note: previous declaration ‘llvm::MachinePostDominatorTree::MachinePostDominatorTree(llvm::MachineFunction&)’
   51 |   explicit MachinePostDominatorTree(MachineFunction &MF) { recalculate(MF); }
      |            ^~~~~~~~~~~~~~~~~~~~~~~~
116.885 [4057/7/793] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineCombiner.cpp.o
119.752 [4057/6/794] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineBasicBlock.cpp.o
119.873 [4057/5/795] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineConvergenceVerifier.cpp.o
120.351 [4057/4/796] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineCopyPropagation.cpp.o
121.997 [4057/3/797] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/LLVMTargetMachine.cpp.o
122.041 [4057/2/798] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineCSE.cpp.o
122.703 [4057/1/799] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineCheckDebugify.cpp.o
ninja: build stopped: subcommand failed.

```

https://github.com/llvm/llvm-project/pull/95369