syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"Rvalue::BinaryOp(BinOp::Eq,"}]}
source_snippet:             Rvalue::BinaryOp(BinOp::Eq, Box::new((Operand::Copy(addr), zero))),
context_before:             is_null,
context_after:         ))),