syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"ExprKind::Binary"}]}
source_snippet:                     ExprKind::Binary { op, lhs, rhs } => {
context_before:                 parse_by_kind!(self, args[0], _, "binary op",
context_after:                         if let Some(op_with_overflow) = op.wrapping_to_overflowing() {