Added test to make sure subclasses of conforming classes inherit properly
Added test to make sure subclasses of conforming classes inherit properly

liuruxian/libextobjc,telly/libextobjc,sunfei/libextobjc,sanojnambiar/libextobjc,bboyesc/libextobjc,WPDreamMelody/libextobjc,KBvsMJ/libextobjc,jiakai-lian/libextobjc,sandyway/libextobjc,kolyuchiy/libextobjc,goodheart/libextobjc