[Issue 15597] error messages in mixins should show context

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15597

RazvanN <razvan.nitu1305 at gmail.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |razvan.nitu1305 at gmail.com
         Resolution|---                         |WORKSFORME

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