[llvm] [llvm][Support] Add YAMLSchemeGen for producing YAML Schemes from YAMLTraits (PR #133284)

[James Henderson via llvm-commits]

jh7370 wrote:

Hi @tgs-sc, as you wrote an RFC to accompany this PR, I think it's more important you seek some input on that RFC there rather than here on the PR. In particular, I'd reach out (on the RFC on Discord) to the maintainers and contributors to the tools this PR is aimed to help with, rather than the people who occasionally submit patches to areas of yaml2obj/ObjectYAML.

https://github.com/llvm/llvm-project/pull/133284