[Issue 17141] CommonType!(dchar, char) returns uint

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17141

--- Comment #6 from hst...@quickfur.ath.cx ---
Wow, this bug goes way back to issue #5659. Looks like it was partially fixed
back then, but there are still cases not fixed.

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