FEAT: improved conditional expression checking for IF, EITHER, UNTIL, WHILE, ALL, ANY FIX: minor code refactoring
FEAT: improved conditional expression checking for IF, EITHER, UNTIL, WHILE, ALL, ANY
FIX: minor code refactoring

iArnold/red,rheber/red,iArnold/red,red-eco/red,vehar/red,red-eco/red,vehar/red,rheber/red,NikolayShubenkovProgSchool/red,NikolayShubenkovProgSchool/red