[Issue 17978] coercion from int to ubyte wrongly accepted

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17978

Basile-z <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|github HEAD gives wrong     |coercion from int to ubyte
                   |warning for bitwise unary   |wrongly accepted
                   |operation                   |

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