build_test rule kind is _empty_test, which seems off when trying to filter. Would it be okey to rename to skylib_build_test?

[acecilia]

Hi 👋

The macro build_test uses the rule _empty_test under the hood.

Such name for a rule is cryptic when trying to filter targets by kind:

bazelisk query 'kind(_empty_test, //...)'

What do you think, is there a chance to rename _empty_test to something more user-friendly, such as skylib_build_test?

[tetromino]

The name of the rule needs to be prefixed with _ because it's a private rule - we don't want any macro outside that particular .bzl file using it.

If _empty_test is cryptic, I might suggest renaming it to something like _noop_rule_for_build_test.