[Issue 7804] Cannot alias __traits directly

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=7804

uplink.coder at googlemail.com changed:

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                 CC|                            |uplink.coder at googlemail.com

--- Comment #8 from uplink.coder at googlemail.com ---
The issue with this one is that __traits are not considered as types by the
parser as they mostly are not.

one approach could be to have an opinion about which __traits can evaluate to
types and allow those at parser level.

I may give this a shot but my time is currently limited.

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