[Issue 16627] [Reg 2.072] struct with disabled postblit field is now nested

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16627

--- Comment #1 from Martin Nowak <code at dawg.eu> ---
Caused by the 2nd commit of that PR
https://github.com/dlang/dmd/pull/5500/commits/75b5b691555bef2d2f21b44821f297f93ddfbc77.

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