[llvm] Reland "[TableGen][DecoderEmitter] Store HW mode ID instead of name (NFC) (#154052)" (PR #154212)

[via llvm-commits]

dyung wrote:

> Looks like the fix didn't help (this time I got an e-mail notification). I'll push another one shortly.

I don't believe Green Dragon sends email on failures. There are 2 MacOS bots in the LLVM Buildbot that I setup that when they fail should cause emails and notifications to be sent out when they fail (like you received this time)

https://github.com/llvm/llvm-project/pull/154212