[llvm] [TableGen, CodeGen, CHERI] Add support for the cPTR wildcard value type. (PR #158426)

[Owen Anderson via llvm-commits]

resistor wrote:

The only idea I have is that it perturbed tblgen output in some way, but re-reading the diff I don't see a clear way for that to have happened. 

https://github.com/llvm/llvm-project/pull/158426