[llvm] [TableGen] Added submulticlass typechecking to template arg values. (PR #112904)

[Jay Foad via llvm-commits]

jayfoad wrote:

> Is it ever supposed to be valid to use defm with a class name, like c in defm a : m, c; above?

Oh, I see this is allowed and documented. Sorry for the noise.

https://github.com/llvm/llvm-project/pull/112904