- Wildcards
- Refactor bad testdata into bad/ dir
- CNAME resolution
- Ensure NS records don't point inward (will require changes to unrelated tests)
- Alias values via `!alias <hostname> <type> [index, default 0]`
  - e.g. `www: !alias example.com A`
	- Maybe ALIAS "records" too, to reduce complexity vs
	- Either way, resolved at validate time, not at query time, and only searches within loaded zones, not external