syntax_data: {"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:         }
context_before:             ty::Const::new_expr(tcx, Expr::new_call(tcx, fun_ty, fun, new_args))
context_after:         &ExprKind::Binary { op, lhs, rhs } if check_binop(op) => {