[Issue 21285] Delegate covariance broken between 2.092 and 2.094 (git master).

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21285

--- Comment #10 from hsteoh at quickfur.ath.cx ---
Verified that it works on the original code I found this bug in.  Thanks a
bunch for the efforts!!

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