[llvm] [TableGen] Add InstrInfoEmitter options for operand type/size mappings (PR #125797)

[Rahul Joshi via llvm-commits]

jurahul wrote:

Note that this is pure build time improvement in running tablegen and nothing more, as the other backends should not be ingesting the unused code already, so this won't affect any binary size or anything else.

https://github.com/llvm/llvm-project/pull/125797