Reference counting with fat pointers

[Kagamin via Digitalmars-d]

Added protocol for parameters, COM and Objective-C.

On Saturday, 26 July 2014 at 10:49:25 UTC, Marc Schütz wrote:
> Interesting proposal. It seems that you want to change the 
> default for pointers in D, but Walter will probably not like 
> that ;-). But I wonder how much language support this actually 
> needs, much of it seems implementable with templates, which is 
> probably much more acceptable.

Also added escaping and uniqueness checks. Because RC tracks all 
references it becomes possible to check if scoped data was 
escaped or non-unique unshared data was casted to shared. Code 
written for GC can benefit from these checks too, it would be 
beneficial, if these checks could be applicable to such code too 
without modification.