[Issue 23127] @safe inference seems to depend on semantic analysis order

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23127

--- Comment #3 from mhh <maxhaton at gmail.com> ---
RBNode has it's AggregateDecl semantic3 done far far too late. I've checked for
plain memory corruption, I think this is something trying to be clever and
failing (as per usual).

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