🤔 What's the problem you're trying to solve?

Snippets are not currently part of the messages schema. As we move to messages-based formatters, they won't be able to include snippets unless we add them to the schema. This is already the case with the xml, pretty and html formatters.

✨ What's your proposed solution?

Add snippets to the messages schema.

There's more than one good way we could do this, but my first draft would be:

• New Snippet message emitted once for each unique snippet containing
  • id
  • text the unmatched step text
  • code the suggested code
  • language the language of the suggested code (useful for e.g. syntax highlighting in formatters)
• New optional field snippetId on the existing TestStepResult message, to be included for undefined steps where there is a snippet