[clang] [CIR] Shard generated operation definitions (NFC) (PR #232894)

[Bruno Cardoso Lopes via cfe-commits]

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

If it's helping speed up things for you and others, LGTM. I would wait on one more stamp just to be sure.

https://github.com/llvm/llvm-project/pull/232894