[Issue 18952] std.experimental.checkedint.Saturate prints integral promotion deprecation message

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18952

--- Comment #1 from Seb <greensunny12 at gmail.com> ---
PR https://github.com/dlang/phobos/pull/6549

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