cast(!const) proposal

[Jason House]

Don Clugston wrote:
> My earlier proposal was:
> cast(break const)
> for essentially the same thing. But we really need something for this, 
> whatever the syntax.

IIRC, that alternative was the most popular in the original thread.

Personally, I won't like the const framework until there is a safe way 
of converting to/from the various types of constness.  I have ideas on 
the topic, but I don't know if my issues are considered a problem or not.