union test method . concode_field_sep PlaceHolder placeHolder concode_field_sep void occInstanceOf concode_elem_sep void intersect concode_elem_sep void intersect concode_elem_sep void occIntersect concode_elem_sep void occUnion concode_elem_sep void eq concode_elem_sep void instanceOf
void function ( final SeqType arg0 , final SeqType arg1 , final SeqType arg2 ) { eq ( arg0 . union ( arg1 ) , arg2 ) ; eq ( arg1 . union ( arg0 ) , arg2 ) ; }