ary_join_1       1942 array.c        static void ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first);
ary_join_1       1957 array.c        	ary_join_1(obj, ary, sep, 0, result, first);
ary_join_1       2056 array.c        	    ary_join_1(ary, ary, sep, i, result, &first);