fix Issue 22894 - importC: static struct initializer can't take addre…

[WalterBright]

…ss of own field

[dlang-bot]

Thanks for your pull request, @WalterBright!

Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	22894	normal	importC: static struct initializer can't take address of own field

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#13881"

[MoonlightSentinel]

CTFE still fails with this patch - the first expression in the initializer triggers Error: variable localS cannot be read at compile time):

int main()
{
    struct S localS =
    {
        &localS,
        0,
        &localS.first
    };

    assertImpl(localS.s == &localS);
    assertImpl(localS.first == 0);
    assertImpl(localS.last == &localS.first);
    return 0;
}

_Static_assert(main() == 0, "Test");

[WalterBright]

@MoonlightSentinel that is a different problem with a different solution. Please file a separate bug report for that.

[WalterBright]

https://issues.dlang.org/show_bug.cgi?id=22921

filed as a separate bug report