[Issue 12615] Warn against, and then deprecate old alias syntax

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12615

--- Comment #12 from Steven Schveighoffer <schveiguy at yahoo.com> ---
(In reply to briancschott from comment #11)

> What does that even do?

If I understand correctly, it aliases all the items in the list to HANDLE.

FWIW, I don't think the syntax is worth keeping.

--