ndb/include/ndbapi/Ndb.hpp:
  make auto-incr methods return int 0/-1
ndb/src/ndbapi/Ndb.cpp:
  make auto-incr methods return int 0/-1
ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  make auto-incr methods return int 0/-1
ndb/test/ndbapi/testDict.cpp:
  make auto-incr methods return int 0/-1
ndb/tools/restore/consumer_restore.cpp:
  make auto-incr methods return int 0/-1
sql/ha_ndbcluster.cc:
  make auto-incr methods return int 0/-1