[clang] [HIP][SPIRV] Implicit `new`/`delete` should be `cdecl` on host (PR #152023)

[Yaxun Liu via cfe-commits]

https://github.com/yxsamliu approved this pull request.

LGTM for now. If we encounter similar situation in future may consider a more generic approach.

https://github.com/llvm/llvm-project/pull/152023