[Issue 20756] ImplicitConversionTargets ignores interface inheritance

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20756

--- Comment #4 from Dlang Bot <dlang-bot at dlang.rocks> ---
@FeepingCreature created dlang/phobos pull request #8016 "Fix issue 20756:
Handle interface argument in `AllImplicitConversionTargets`." fixing this
issue:

- Fix issue 20756: Handle interface argument in `AllImplicitConversionTargets`.

https://github.com/dlang/phobos/pull/8016

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