[Issue 11934] Allow `ref` in `foreach` over range iff `front` returns by `ref`

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=11934

Nick Treleaven <nick at geany.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nick at geany.org
           See Also|                            |https://issues.dlang.org/sh
                   |                            |ow_bug.cgi?id=11935

--