syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"block.and(Rvalue::Use(Operand::Constant(Box::new(ConstOperand"}]}
source_snippet:                 block.and(Rvalue::Use(Operand::Constant(Box::new(ConstOperand {
context_before:                 block = this.stmt_expr(block, expr_id, None).into_block();
context_after:                     span: expr_span,