SV_ID2
sv2[i] = shadow_alloc(&objs[i], SV_ID2, sizeof(pnfields2[i]),
sv = shadow_get(&objs[i], SV_ID2);
sv = shadow_get(&objs[i], SV_ID2); /* 'int' pairs */
shadow_free_all(SV_ID2, NULL); /* 'int' pairs */
sv = shadow_get(&objs[i], SV_ID2);
shadow_free_all(SV_ID2, NULL); /* 'int' pairs */