Idea #1 on integrating RC with GC

[Adam D. Ruppe]

On Wednesday, 5 February 2014 at 18:25:31 UTC, Andrei 
Alexandrescu wrote:
> Allow people to clean up memory allocated by Phobos.

A better solution would be for Phobos to allocate less memory. 
Instead of returning strings, accept output ranges that receive 
it. Make slices work as output ranges well with control over 
growing.

(We can still offer the simple string returning functions for 
convenience)