[Issue 17985] Implement -stdin for rdmd

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17985

greenify <greeenify at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |greeenify at gmail.com

--- Comment #2 from greenify <greeenify at gmail.com> ---
With 2.078.0 DMD will support `cat foo.d | dmd -run -` which is probably what
the creator was looking for?

--