[Issue 19537] Invariants from base classes not called

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19537

Basile B. <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
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                 CC|                            |b2.temp at gmx.com

--- Comment #2 from Basile B. <b2.temp at gmx.com> ---
Reducing further shows that this has never worked correctly actually, see
https://run.dlang.io/is/D3nV8K.

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