Alternate signs in a range

[matovitch]

> I get the following error message :
>
> /usr/include/dmd/phobos/std/range.d(4220): Error: Internal 
> Compiler Error: CTFE literal Tuple(void, void)._expand_field_0
> dmd: ctfeexpr.c:359: Expression* copyLiteral(Expression*): 
> Assertion `0' failed.
> Aborted (core dumped)

Someone already encounter this error here http://is.gd/2rsFQJ ...