[llvm] [TableGen] Don't crash on !cond with mixed bits and int (PR #216292)

[Arron Zou via llvm-commits]

arronKler wrote:

I have read the LLVM AI Tool Use Policy, the code-review policy, and the developer policy. AI tool usage is noted in the PR description.

https://github.com/llvm/llvm-project/pull/216292