[Issue 2809] Wrong constant folding for unsigned shift

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=2809

Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla at digitalmars.com
         Resolution|---                         |INVALID

--- Comment #8 from Walter Bright <bugzilla at digitalmars.com> ---
Since operands always undergo integral promotions, this behavior is expected
and correct. The idea is that the expressions will compute the same value as
the equivalent C expression in order to enable simple conversion of C code to D
code.

See:

https://dlang.org/spec/type.html#integer-promotions
https://dlang.org/spec/type.html#usual-arithmetic-conversions

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