[Issue 13189] `alias this` is not transitive

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=13189

Mike <slavo5150 at yahoo.com> changed:

           What    |Removed                     |Added
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                 CC|                            |slavo5150 at yahoo.com
           See Also|                            |https://issues.dlang.org/sh
                   |                            |ow_bug.cgi?id=5380

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