fix intermittent failures of main.create_or_replace test in buildbot

don't kill statements in the default connection, kill them in a connection that
will be closed - it'll guarantee that `KILL con_id` will not apply to unrelated statements.

mysql-test/r/create_or_replace.result

@@ -434,9 +434,9 @@ unlock tables;
 CREATE TABLE t1 (col_int_nokey INT)  ENGINE=InnoDB;
 CREATE OR REPLACE TEMPORARY TABLE tmp LIKE t1;
 LOCK TABLE t1 WRITE;
-CREATE OR REPLACE TABLE t1 LIKE tmp;;
+CREATE OR REPLACE TABLE t1 LIKE tmp;
 KILL QUERY con_id;
-CREATE OR REPLACE TABLE t1 (a int);;
+CREATE OR REPLACE TABLE t1 (a int);
 KILL QUERY con_id;
 drop table t1;
 DROP TABLE t2;

mysql-test/t/create_or_replace.test

@@ -339,31 +339,31 @@ unlock tables;
 
 CREATE TABLE t1 (col_int_nokey INT)  ENGINE=InnoDB;
 
---let $con_id = `SELECT CONNECTION_ID()`
 CREATE OR REPLACE TEMPORARY TABLE tmp LIKE t1;
 LOCK TABLE t1 WRITE;
 
 --connect (con1,localhost,root,,test)
-
+--let $con_id = `SELECT CONNECTION_ID()`
+--send CREATE OR REPLACE TABLE t1 LIKE tmp
 --connection default
---send CREATE OR REPLACE TABLE t1 LIKE tmp;
---connection con1
 --replace_result $con_id con_id
-eval KILL QUERY $con_id;
+--eval KILL QUERY $con_id
 
---connection default
+--connection con1
 --error 0,ER_QUERY_INTERRUPTED
 --reap
---send CREATE OR REPLACE TABLE t1 (a int);
+--send CREATE OR REPLACE TABLE t1 (a int)
 
---connection con1
+--connection default
 --replace_result $con_id con_id
-eval KILL QUERY $con_id;
+--eval KILL QUERY $con_id
 
---connection default
+--connection con1
 --error 0,ER_QUERY_INTERRUPTED
 --reap
 --disconnect con1
+--connection default
+
 drop table t1;
 
 #