is(Mutex == shared) == false?

[Sean Kelly]

On Saturday, 8 February 2014 at 16:46:26 UTC, Stanislav Blinov 
wrote:
> Also, on a related note, is there any benefit in having 
> core.sync primitives not final? What would be a use case to 
> inherit from e.g. Mutex or Condition? GC does that with Mutex, 
> but only to devirtualize all methods :)
>
> Maybe we should also consider making them final along the way?

Probably.  The new std.concurrency patch overrides Condition, but 
mostly for convenience.  I think those methods not being virtual 
was an oversight on my part.