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

[witold.baryluk+gcc at gmail dot com]

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

--- Comment #1 from Witold Baryluk <witold.baryluk+gcc at gmail dot com> ---
BTW. Adding return statement in `raytrace`, does not change anything:

```
user@debian:~$ gdc-13 -c -fpreview=dip1021 lup.d
user@debian:~$ gdc-13 -c -fpreview=dip1021 lup.d
user@debian:~$ gdc-13 -c -fpreview=dip1021 lup.d
user@debian:~$ gdc-13 -c -fpreview=dip1021 lup.d
user@debian:~$ gdc-13 -c -fpreview=dip1021 lup.d
/usr/lib/gcc/x86_64-linux-gnu/13/include/d/std/math/algebraic.d:968:47:
internal compiler error: Segmentation fault
  968 |             return cast(Unqual!T) (T(1) << bsr(val) + type);
      |                                               ^
0xd32f86 crash_signal
        ../../src/gcc/toplev.cc:314
0x7f7144273f8f ???
        ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x17f7d10 _D3dmd4root3aav15dmd_aaGetRvalueFNaNbNiPSQBnQBmQBk2AAPvZQd
        ../../src/gcc/d/dmd/root/aav.d:127
0x1706b25 DsymbolTable::lookup(Identifier const*)
        ../../src/gcc/d/dmd/dsymbol.d:2408
0x1706b25 ScopeDsymbol::search(Loc const&, Identifier*, int)
        ../../src/gcc/d/dmd/dsymbol.d:1470
...
...
```