{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"Op::AssignOp(Spanned"}]}
                        Op::AssignOp(Spanned { node: hir::AssignOpKind::AddAssign, .. })
                    match op {
                            if lhs_ty.is_raw_ptr() && rhs_ty.is_integral() =>