compute_from suppresses deprecation warnings

[jamesnw]

Minimal nonsense reproduction, api.SVGAnimateColorElement is deprecated, html.elements.del is not.

name: deprecated
description: deprecated
compat_features:
  - api.SVGAnimateColorElement
  - html.elements.del

npm run dist -- path/to/file prints the warning:

warn: [feature id]: contains at least one deprecated compat feature and can never be Baseline. Was this intentional?

Adding a status.compute_from suppresses the deprecation warning.

name: deprecated
description: deprecated
status:
  compute_from: html.elements.del
compat_features:
  - api.SVGAnimateColorElement
  - html.elements.del

npm run dist -- path/to/file does not print a warning.

Ideally, it would also show the deprecated keys, but it looks like that is a bit harder to surface.