[Issue 17868] add pragma(crt_con/destructor[, priority])

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17868

anonymous4 <dfj1esp02 at sneakemail.com> changed:

           What    |Removed                     |Added
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           See Also|                            |https://issues.dlang.org/sh
                   |                            |ow_bug.cgi?id=17747

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