question: equality comparison . concode_field_sep Hashtable _all concode_field_sep Enumeration all concode_elem_sep boolean add concode_elem_sep boolean add 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 is_subset_of concode_elem_sep String toString concode_elem_sep void remove concode_elem_sep void remove
target: boolean function ( symbol_set arg0 ) { if ( arg0 == null || arg0 . size ( ) != size ( ) ) return false ; try { return is_subset_of ( arg0 ) ; } catch ( internal_error loc0 ) { loc0 . crash ( ) ; return false ; } }