Ranges and Exception handling PR 2724

[Robert burner Schadek via Digitalmars-d]

On Saturday, 15 November 2014 at 01:43:07 UTC, Robert burner 
Schadek wrote:
> This PR 
> https://github.com/D-Programming-Language/phobos/pull/2724 adds 
> an generic way of handling Exception in Range processing. 
> quickfur and Dicebot ask me to start a thread here so the 
> concept could be discussed.

We are currently searching for a name for an enum that is used to 
select which methods of the range to handle.

Current ideas are found in the PR. please have a look and give 
comments.