syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"block.and(Rvalue::Use(Operand::Constant(Box::new(constant))))"}]}
source_snippet:                 block.and(Rvalue::Use(Operand::Constant(Box::new(constant))))
context_before:                 let constant = this.as_constant(expr);
context_after:             }