runtime checks for typeswitch
runtime checks for typeswitch

cezarfx/zorba,28msec/zorba,bgarrels/zorba,bgarrels/zorba,28msec/zorba,28msec/zorba,cezarfx/zorba,28msec/zorba,28msec/zorba,28msec/zorba,cezarfx/zorba,28msec/zorba,cezarfx/zorba,cezarfx/zorba,cezarfx/zorba,28msec/zorba,bgarrels/zorba,cezarfx/zorba,bgarrels/zorba,cezarfx/zorba,cezarfx/zorba,bgarrels/zorba,bgarrels/zorba,cezarfx/zorba,bgarrels/zorba,bgarrels/zorba,28msec/zorba