[clang] [Clang][CodeGen] Emit load of GEP after EmitMemberExpr (PR #110487)

[Jan Hendrik Farr via cfe-commits]

Cydox wrote:

@bwendling I think you accidentally compiled the wrong branch. Looks like that is in `builtin_get_counted_by`, but this PR is in `bdos-member-expr-error`

https://github.com/llvm/llvm-project/pull/110487