{"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":".to_scalar_pair();"}]}
                    .to_scalar_pair();
                    .binary_op(BinOp::SubWithOverflow, &ImmTy::from_int(0, arg.layout), &arg)?
                interp_ok((arg, overflow.to_bool()?))