{"ast_node_type":"variable","tokens":[{"end":95,"kind":"keyword","start":0,"text":"let"}]}
                let Ok(layout) = self.tcx.layout_of(self.typing_env.as_query_input(*ty)) else {
            Rvalue::NullaryOp(null_op, ty) => {
                    return ValueOrPlace::Value(FlatSet::Top);