rb_ary_length    1789 array.c        rb_ary_length(VALUE ary);
rb_ary_length    1794 array.c            return rb_ary_length(ary);
rb_ary_length    4870 array.c            return rb_funcallv(rb_ary_length(self), '*', 1, &n);
rb_ary_length    6089 array.c            rb_define_method(rb_cArray, "length", rb_ary_length, 0);