[Issue 18495] Integral promotion for a ~ operator

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18495

--- Comment #3 from Steven Schveighoffer <schveiguy at yahoo.com> ---
Although this bug is invalid, there legitimately is a problem with the spec:
https://issues.dlang.org/show_bug.cgi?id=18496

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