Merge bk-internal.mysql.com:/home/bk/mysql-5.0

into  mysql.com:/opt/local/work/mysql-5.0-11172-new

sql/sql_prepare.cc

@@ -2447,6 +2447,7 @@ Prepared_statement::~Prepared_statement()
   if (cursor)
     cursor->Cursor::~Cursor();
   free_items();
+  free_root(cursor->mem_root, MYF(0));
   delete lex->result;
 }
 

sql/sql_select.cc

@@ -1920,7 +1920,6 @@ Cursor::~Cursor()
 {
   if (is_open())
     close(FALSE);
-  free_root(mem_root, MYF(0));
 }
 
 /*********************************************************************/