[Issue 12081] Warn against, and then deprecate class allocators

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=12081

Basile-z <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |b2.temp at gmx.com
         Resolution|---                         |FIXED

--- Comment #1 from Basile-z <b2.temp at gmx.com> ---
They've been removed now. Only one limited form remains, with @disable, to
allow blocking the 'new' operator.

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