Function rustc_typeck::check::bad_non_zero_sized_fields

pub(in check) fn bad_non_zero_sized_fields<'tcx>(
    tcx: TyCtxt<'tcx>, 
    adt: &'tcx AdtDef, 
    field_count: usize, 
    field_spans: impl Iterator<Item = Span>, 
    sp: Span
)

Emit an error when encountering more or less than one non-zero-sized field in a transparent enum.