[lldb] [llvm] [lldb] Encode operands and arity in Dwarf.def and use them in LLDB. (PR #94679)

[Jonas Devlieghere via llvm-commits]

JDevlieghere wrote:

@clayborg that's a cool idea. We might be able to use that to implement `GetOpcodeDataSize`. That would definitely be a separate PR though. 

https://github.com/llvm/llvm-project/pull/94679