[clang] [CIR] Upstream handling of integral-to-pointer casts (PR #161653)

[Amr Hesham via cfe-commits]

AmrDeveloper wrote:

@kimsh02 For code formatting, you can check it locally using `git clang-format HEAD~1` (Change 1 for the number of commits you want to check)

https://llvm.org/docs/Contributing.html#how-to-submit-a-patch

Note: For the "Build and Test Linux" the current issue is not related to your PR

https://github.com/llvm/llvm-project/pull/161653