std.conv.parse not accepting ByCodeUnitImpl

[Jack Stouffer via Digitalmars-d-learn]

On Wednesday, 25 May 2016 at 16:53:30 UTC, Steven Schveighoffer 
wrote:
> to should work wherever parse works (in fact, whenever you call 
> to!someType(someString), I believe it just forwards to parse).

This is not the case; to doesn't work with ranges:

     auto str = "1234567".byCodeUnit;
     auto result = parse!int(str);
     auto result2 = to!int(str); // doesn't compile