[Issue 12593] [REG2.065] AA cannot have struct as key

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12593

--- Comment #2 from yazan.dabain at gmail.com ---
It is related, but I couldn't get it to work even with opCmp/opEquals/toHash or
different combinations of them. So this is a more general issue.

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