text search configuration missing while migration from 8.3 to 9.4

Hello, we recenlty created fresh install of 9.4, created new dbs, and pg_dumped and restored correspondent dbs from 8.3 (pg_dump|psql, being on target). Now we've noticed that some of `pg_catalog.pg_ts_config` and pg_ts_dict tables are missing, making text search on 9.4 very slow. We tried to insert missing records from pg_catalog.pg_ts_config, but it does not help. What is the proper procedure for it? Please help, thanks!