[Issue 19091] __traits(compiles) and error in templated structs leads to missing symbol

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19091

--- Comment #10 from FeepingCreature <default_357-line at yahoo.de> ---
There's probably two issues. There's some sort of issue (which triggered this
originally) where the same template is inferred @safe at one time and non- at safe
in the other, which is what sent me off on 21235. But because the template
error that would normally draw attention to this issue gets eaten and turned
into a linker error, this is hard to differentiate from 19091 so I'd strongly
recommend to get 19091 fixed first before even looking into the 21235
regression.

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