dir_close         311 dir.c          static VALUE dir_close(VALUE);
dir_close         400 dir.c          	return rb_ensure(rb_yield, dir, dir_close, dir);
dir_close        1728 dir.c              rb_ensure(dir_each, dir, dir_close, dir);
dir_close        1749 dir.c              return rb_ensure(rb_Array, dir, dir_close, dir);
dir_close        1888 dir.c              rb_define_method(rb_cDir,"close", dir_close, 0);