User defined type and foreach

[Steven Schveighoffer]

On 11/16/17 8:10 AM, ag0aep6g wrote:
> On 11/16/2017 09:03 AM, Tony wrote:
>> However, when I use the class with foreach, the opindex gets called to 
>> create a dynamic array, rather than use the empty(),front(),popFront() 
>> routines. I would prefer it use the three methods, rather than create 
>> a dynamic array.
> 
> https://issues.dlang.org/show_bug.cgi?id=14619

I took a shot at fixing. Way more complex than I realized.

-Steve