fix #20610 aliasing for fields does not work

[WalterBright]

Issue: #20610

@TurkeyMan I think you'll like this!

[dlang-bot]

Thanks for your pull request, @WalterBright!

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.

⚠️⚠️⚠️ Warnings ⚠️⚠️⚠️

• In preparation for migrating from Bugzilla to GitHub Issues, the issue reference syntax has changed. Please add the word "Bugzilla" to issue references. For example, Fix Bugzilla Issue 12345 or Fix Bugzilla 12345.(Reminder: the edit needs to be done in the Git commit message, not the GitHub pull request.)

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + dmd#20611"

[WalterBright]

Once again, the tester does not run the test suite first, it tries to build Phobos first.

The tester should run the test suite FIRST, as it is designed to be run FIRST, not LAST.

The test suite is filled with already reduced, standalone tests. This makes it much much easier to fix a problem than trying to debug the massive tangle that is Phobos.

@dkorpel can this be fixed?

[WalterBright]

std/experimental/allocator/common.d(144): Error: no property `Allocator` for `a` of type

[thewilsonator]

please use fix #20610 for PR and commit titles.

[WalterBright]

please use fix #20610 for PR and commit titles

Done. Can you please fix the boilerplate message "In preparation for migrating from Bugzilla to GitHub Issues, the issue reference syntax has changed. Please add the word "Bugzilla" to issue references. For example, Fix Bugzilla Issue 12345 or Fix Bugzilla 12345.(Reminder: the edit needs to be done in the Git commit message, not the GitHub pull request.)" added to every PR?

[thewilsonator]

dlang/dlang-bot#305 (comment) I suspect that setting that array to empty is the easiest way to do that. N.B that PR was from when the transition to GitHub issues was still ongoing, it is likely to be simpler now that bugzilla is read-only.

[dkorpel]

@dkorpel can this be fixed?

Martin has started work on removing the test suite's Phobos dependency, but it's still WIP: #16587

I recommend running the test suite locally, you have more control and get way quicker feedback that way.