Force type int for ENUMs.
Replace remaining longjmp.
  modified:   storage/connect/array.cpp
  modified:   storage/connect/colblk.cpp
  modified:   storage/connect/connect.cc
  modified:   storage/connect/filter.cpp
  modified:   storage/connect/jdbconn.cpp
  modified:   storage/connect/plgdbutl.cpp
  modified:   storage/connect/tabdos.cpp
  modified:   storage/connect/tabvir.cpp
  modified:   storage/connect/tabxml.cpp
  modified:   storage/connect/value.cpp
  modified:   storage/connect/xobject.cpp