[clang] [CIR] Implement NotEqualOp for ComplexType (PR #146129)

[Amr Hesham via cfe-commits]

AmrDeveloper wrote:

> Is there any reason why this is special a operation and not cmp operation parameterized by (ne, eq) as for floats, integers?

I like the suggestion too, especially that both of them has the same signature T, T -> bool, I will update this PR and create another PR to update ComplexEqualOp


https://github.com/llvm/llvm-project/pull/146129