[Issue 14639] Assigning init value to struct uses stack, causing segfault

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=14639

--- Comment #4 from Walter Bright <bugzilla at digitalmars.com> ---
This:

    https://github.com/dlang/dmd/pull/10967

changes the

    biggy = Biggy.init;

implementation into a memset.

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