643     json j2;  variable
644     CHECK_NOTHROW(j2 = json::from_bson(bson_representation));
647     CHECK(json_representation == j2);
1277                 json j2;  in skip()  local
1278                 CHECK_NOTHROW(j2 = json::from_bson(packed));  in skip()
1281                 CHECK(j1 == j2);  in skip()
1292                 json j2;  in skip()  local
1293                 CHECK_NOTHROW(j2 = json::from_bson(f_bson));  in skip()
1296                 CHECK(j1 == j2);  in skip()
1307                 json j2;  in skip()  local
1308                 CHECK_NOTHROW(j2 = json::from_bson({packed.data(), packed.size()}));  in skip()
1311                 CHECK(j1 == j2);  in skip()