Suggestion: stabilize remaining unstable flags of `deno test`

[GJZwiers]

The CLI docs for deno test show three flags still listed as unstable: --coverage, --doc, and --shuffle. All of these have been around for quite some time and they seem to be working well, so perhaps they could be stabilized?

[bartlomieju]

Yes, that sounds reasonable. PRs are welcome

[Antonio476587]

#17664

[GJZwiers]

@Antonio476587 While deno coverage still has a few bugs, in Deno going from unstable to stable does not mean there are no more issues, only that the API will not change anymore, except potentially on a new major version or in case of a security hazard. AFAIK there are no plans to remove or alter deno test --coverage, which is why I made the suggestion to stabilize it.