Re-add has_public_example to circleci.sh for legacy compatibility

[wilzbach]

This should fix the CircleCi build failures on older PRs and avoids the unnecessary need to rebase.

Background: we merge the PR branch into the target branch, hence the newest circleci.sh is always applied, but unfortunately we the circle.yml isn't updated. While we could use just one target e.g. test, using multiple has the advantage of visually grouping them nicely and thus helping a reader to track down the root of the failure.

CC @CyberShadow @schveiguy @JackStouffer @ZombineDev

[CyberShadow]

Sounds good to me.

What about stable?

[wilzbach]

What about stable?

has_public_example is still part of stable: https://github.com/dlang/phobos/blob/stable/circleci.sh#L147
Btw I just looked at CircleCi and it seems that stable was/is building fine:

https://circleci.com/gh/dlang/phobos/tree/stable

[CyberShadow]

Btw I just looked at CircleCi and it seems that stable was/is building fine:

Hmm, then why is #5511 failing?

[wilzbach]

continuous-integration/jenkins/pr-merge — This commit cannot be built

Arrgh Jenkins failing again. Could we give fixes like dlang/ci#47 more priority (even if they don't solve the root cause)?

[dlang-bot]

Thanks for your pull request, @wilzbach! We are looking forward to reviewing it, and you should be hearing from a maintainer soon.

Some tips to help speed things up:

• smaller, focused PRs are easier to review than big ones

• try not to mix up refactoring or style changes with bug fixes or feature enhancements

• provide helpful commit messages explaining the rationale behind each change

Bear in mind that large or tricky changes may require multiple rounds of review and revision.

Please see CONTRIBUTING.md for more information.

Bugzilla references

Your PR doesn't reference any Bugzilla issue.

If your PR contains non-trivial changes, please reference a Bugzilla issue or create a manual changelog.

[wilzbach]

(rebased as this is the only way I know to rekick Jenkins ...)

[wilzbach]

Urrgh now dlang/dmd#6940 has propagated the version PR into master and CircleCI is now failing for master as well:

make: *** No rule to make target `../generated/linux/release/64/VERSION', needed by `../generated/linux/release/64/dmd'.  Stop.
make: *** Waiting for unfinished jobs....

[wilzbach]

(yet another rebase to kick Jenkins)

[wilzbach]

and yet another rebase for Jenkins ...