[Issue 22473] dmd foreach loops throw exceptions on invalid UTF sequences, use replacementDchar instead

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22473

Adam D. Ruppe <destructionator at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |destructionator at gmail.com

--- Comment #2 from Adam D. Ruppe <destructionator at gmail.com> ---
I believe making it either wchar or dchar will cause it to try to convert, and
throw on failure.

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