[Issue 9608] Add introspection for templates

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=9608

--- Comment #11 from Andrej Mitrovic <andrej.mitrovich at gmail.com> ---
Recapping from the PR just closed (temporarily):

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Ok, I'll start a discussion in the forums soon with a proposal of a (sub)set of
the new traits and see which ones we really need, and whether we could
implement as many of these in the library instead of adding additional compiler
code. Closing for now. :)
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I'll bring this up in the forums soon.

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