[Issue 18675] std.experimental.checkedint.Checked has opEquals but no toHash

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18675

vladvitan at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |vladvitan at gmail.com
              Alias|                            |vlasebian

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