question: add union in a complete set . concode_field_sep Hashtable _all concode_field_sep Enumeration all concode_elem_sep boolean contains concode_elem_sep int size concode_elem_sep void not_null concode_elem_sep int hashCode concode_elem_sep boolean is_superset_of concode_elem_sep boolean equals concode_elem_sep boolean equals concode_elem_sep boolean is_subset_of concode_elem_sep String toString concode_elem_sep void remove concode_elem_sep void remove
target: boolean function ( symbol_set arg0 ) { boolean loc0 = false ; not_null ( arg0 ) ; for ( Enumeration loc1 = arg0 . all ( ) ; loc1 . hasMoreElements ( ) ; ) loc0 = add ( ( symbol ) loc1 . nextElement ( ) ) || loc0 ; return loc0 ; }