rb_classext_t member order exchanged to

make frequently accessed member at first.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13549 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

include/ruby/ruby.h

@@ -431,8 +431,8 @@ struct RValues {
 };
 
 typedef struct {
-    struct st_table *iv_tbl;
     VALUE super;
+    struct st_table *iv_tbl;
 } rb_classext_t;
 
 struct RClass {