#4656 fix the test cases refs[t:4656]

git-svn-id: file:///svn/mysql/tests/mysql-test@41464 c7de825b-a66e-492c-adef-691d508d4ae1

mysql-test/suite/tokudb.bugs/r/4656.result

 set storage_engine='tokudb';
+DROP TABLE IF EXISTS t2;
 CREATE TABLE `t2` (
 `c1` int(11) NOT NULL,
 `c2` int(10) unsigned DEFAULT NULL,

mysql-test/suite/tokudb.bugs/r/4656_2.result

 set storage_engine='tokudb';
+DROP TABLE IF EXISTS t2;
 CREATE TABLE `t2` (
 `c1` int(11) NOT NULL,
 `c2` int(10) unsigned DEFAULT NULL,

mysql-test/suite/tokudb.bugs/t/4656.test

 set storage_engine='tokudb';
+--disable_warnings
+DROP TABLE IF EXISTS t2;
+--enable_warnings
 CREATE TABLE `t2` (
   `c1` int(11) NOT NULL,
   `c2` int(10) unsigned DEFAULT NULL,

mysql-test/suite/tokudb.bugs/t/4656_2.test

 set storage_engine='tokudb';
+--disable_warnings
+DROP TABLE IF EXISTS t2;
+--enable_warnings
 CREATE TABLE `t2` (
   `c1` int(11) NOT NULL,
   `c2` int(10) unsigned DEFAULT NULL,