syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"Rvalue::BinaryOp(BinOp::Eq,"}]}
source_snippet:                     Rvalue::BinaryOp(BinOp::Eq, Box::new((rhs.to_copy(), zero))),
context_before:                     is_zero,
context_after:                 );