[dmd-beta] dmd 2.063 beta 5

[Steven Schveighoffer]

Regarding the current controversy on the NG (and in this mailing list) on const/immutable members with initializers, I would like to propose the following compromise (as posted in the NG):

1. Make a default-initialized const or immutable member an error.  It is not good to allow code with changed semantics (especially of this magnitude) to silently compile without intervention.
2. Disable the error with a switch (to allow for the new behavior).  I believe the current solution is to use a switch to *find* the possibly offending usages.  I think an opt-in approach is better.
3. In a future release, remove the error.

I reposted here, in case some are not watching that NG thread.

-Steve