[clang] [CIR] Add non-floating-point builtin intrinsics (PR #178093)

[Andy Kaylor via cfe-commits]

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andykaylor wrote:

All of these builtin tests should be in `clang/test/CIR/CodeGenBuiltins`. The main goal of moving things there was to avoid the extra testing time when intrinsic headers had to be included. That's not an issue for these tests, but it still seems like a good idea to follow the grouping.

https://github.com/llvm/llvm-project/pull/178093