[Bug d/110113] gdc -fpreview=dip1021 crash in d/dmd/root/aav.d:127 dmd_aaGetRvalue from DsymbolTable::lookup(Identifier const*)

[ibuclaw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110113

--- Comment #6 from ibuclaw at gcc dot gnu.org ---
Full reduction without any imports.

---
class LUBench { }
void lup(ulong , ulong , int , int = 1)
{
    new LUBench;
}
void lup_3200(ulong iters, ulong flops)
{
    lup(iters, flops, 3200);
}
float raytrace()
{
    struct V
    {
        float x, y, z;
        auto normalize() { }
        struct Tid { }
        Tid spawnLinked() { }
        string[] namesByTid;
        class MessageBox { }
        auto cross() { }
    }
}