[Issue 17661] New isInputRange rejects valid input range

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17661

--- Comment #4 from Andrei Alexandrescu <andrei at erdani.com> ---
hsteoh, could you please submit those as a separate bug report for dmd and
create a phobos PR using the simplest workaround you can find? That PR would
close this bug, and the other bug will be for the compiler. Thanks!

--