* harbour/contrib/rddads/ads1.c
* changed ulRetVal to u32RetVal to be the same name in all file
* added RTE if AdsSkip(), AdsGotoRecord(), AdsGotoTop(), and
AdsGotoBottom() return not AE_SUCCESS. All these functions
return 7022 (Maximum index levels) on unbalanced ADS indexes.
; TODO: test and add RTE on AdsSeek() and the other remaining record
positioning function calls