[clang] [llvm] Reland "[LLVM] Add IRNormalizer Pass" (PR #113780)

[Vladimir Vereschaka via cfe-commits]

vvereschaka wrote:

@justinfargnoli ,

I wasn't able to build and check your branch (`TheManWithTheGoldenCanon:main`) locally on the builder because of these linker  errors:
```
 /home/buildbot/worker/temp/llvm-project/llvm/include/llvm/IR/PassManager.h:111: error: undefined reference to 'llvm::PreservedFunctionHashAnalysis::Key'
/home/buildbot/worker/temp/llvm-project/llvm/include/llvm/IR/PassManager.h:111: error: undefined reference to 'llvm::PreservedModuleHashAnalysis::Key'
collect2: error: ld returned 1 exit status
```

Would you check your changes once again? Probably you need to sync your branch with the `llvm-project:main` top-of-the-tree.

https://github.com/llvm/llvm-project/pull/113780