syntax_data: {"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:         }
context_before:             ConstValue::Slice { alloc_id: allocation, meta: len.try_into().unwrap() }
context_after:         (ast::LitKind::Byte(n), ty::Uint(ty::UintTy::U8)) => {