[Issue 22902] dmd 2.099 regression: unittest -checkaction=context and import std.regex causes link error

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22902

--- Comment #1 from kdevel <kdevel at vogtner.de> ---
>    $ dmd -g -i -unittest -checkaction=context -main -run zrepro 2>&1 |
                                                               ^ (typo)
> ddemangle
> 
> gives
> 
> zrepro.o: In function `pure nothrow @nogc @safe immutable(char)[]
> core.internal.dassert._d_assert_fail!(int)._d_assert_fail(scope
> [...]

Seems to be template generation related

$ dmd -allinst -g -i -unittest -checkaction=context -main -run zrepo 2>&1 |
ddemangle
1 modules passed unittests

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