{"ast_node_type":"function","tokens":[{"end":93,"kind":"keyword","start":0,"text":"fn"}]}
    fn is_structural_in_adt_value<'tcx>(_cx: &ConstCx<'_, 'tcx>, adt: AdtDef<'tcx>) -> bool {
        // Exactly one type, `UnsafeCell`, has the `HasMutInterior` qualif inherently.