Fix to make range.test work smoothly --without-innidb

mysql-test/t/range.test:
  warnings disabled

mysql-test/t/range.test

@@ -412,7 +412,9 @@ select count(*) from t2 where x > -16;
 select count(*) from t2 where x = 18446744073709551601;
 
 drop table t1;
+--disable_warnings
 create table t1 (x bigint unsigned not null primary key) engine=innodb;
+--enable_warnings
 insert into t1(x) values (0xfffffffffffffff0);
 insert into t1(x) values (0xfffffffffffffff1);
 select * from t1;