rb_ary_last      3805 array.c            rb_define_method(rb_cArray, "last", rb_ary_last, -1);
rb_ary_last       523 range.c            VALUE rb_ary_last(int, VALUE *, VALUE);
rb_ary_last       526 range.c            return rb_ary_last(argc, argv, rb_Array(range));