{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
impl<'tcx> NonConstOp<'tcx> for PanicNonStr {
pub(crate) struct PanicNonStr;
    fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> Diag<'tcx> {