syntax_data: {"ast_node_type":"other","tokens":[{"end":114,"kind":"keyword","start":0,"text":"op_with_overflow,"}]}
source_snippet:                                 op_with_overflow, Box::new((self.parse_operand(*lhs)?, self.parse_operand(*rhs)?))
context_before:                             Ok(Rvalue::BinaryOp(
context_after:                             ))