[clang] [CIR] Update CIR unary operations (PR #201727)

[Amr Hesham via cfe-commits]

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

LGTM, 

Not related to the PR, but i think we can now start supporting other built-in functions for the Complex type

https://github.com/llvm/llvm-project/pull/201727