[clang] [clang][x86][bytecode] Replace interp__builtin_parity/clrsb/bitreverse/ffs with static bool interp__builtin_elementwise_int_unaryop callback (PR #162346)

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donneypr wrote:

Thank you @RKSimon @tbaederr , have a great rest of your day!! 

https://github.com/llvm/llvm-project/pull/162346