mtr: check that tests clean up debug_sync. fix tests that didn't.

mysql-test/include/mtr_check.sql

@@ -78,6 +78,9 @@ BEGIN
   -- verify that no plugin changed its disabled/enabled state
   SELECT * FROM INFORMATION_SCHEMA.PLUGINS;
 
+  select * from information_schema.session_variables
+    where variable_name = 'debug_sync';
+
  show status like 'slave_open_temp_tables';
 
 END||

mysql-test/r/myisam_optimize.result

@@ -21,3 +21,4 @@ a	left(b,10)
 3	CCCCCCCCCC
 4	CCCCCCCCCC
 drop table t1;
+set debug_sync='reset';

mysql-test/r/processlist.result

@@ -13,3 +13,4 @@ sleep(5)
 select command, time < 5 from information_schema.processlist where id != connection_id();
 command	time < 5
 Sleep	1
+set debug_sync='reset';

mysql-test/r/quick_select_4161.result

@@ -29,3 +29,4 @@ kill %connection%;
 set debug_sync='now signal done';
 Got one of the listed errors
 drop table t1;
+set debug_sync='reset';

mysql-test/suite/rpl/r/rpl_mdev359.result

@@ -9,5 +9,6 @@ SET DEBUG_SYNC= "now WAIT_FOR m1_ready";
 SET GLOBAL rpl_semi_sync_master_enabled = OFF;
 SET DEBUG_SYNC= "now SIGNAL m1_cont";
 DROP TABLE t1;
+SET DEBUG_SYNC= "RESET";
 UNINSTALL PLUGIN rpl_semi_sync_master;
 include/rpl_end.inc

mysql-test/suite/rpl/r/rpl_start_slave_deadlock_sys_vars.result

@@ -28,4 +28,5 @@ SET DEBUG_SYNC='now SIGNAL go';
 # connection: slave
 # cleanup
 SET @@GLOBAL.slave_net_timeout = @save_slave_net_timeout;
+SET DEBUG_SYNC='RESET';
 include/rpl_end.inc

mysql-test/suite/rpl/r/rpl_stop_slave.result

@@ -113,7 +113,6 @@ ROLLBACK;
 [connection master]
 SET DEBUG_SYNC= 'now SIGNAL signal.continue';
 SET DEBUG_SYNC= 'now WAIT_FOR signal.continued';
-SET DEBUG_SYNC= 'RESET';
 [connection slave]
 include/wait_for_slave_to_stop.inc
 [connection slave1]
@@ -121,3 +120,4 @@ include/start_slave.inc
 [connection master]
 DROP TABLE t1, t2;
 include/rpl_end.inc
+SET DEBUG_SYNC= 'RESET';

mysql-test/suite/rpl/t/rpl_mdev359.test

@@ -28,6 +28,7 @@ SET DEBUG_SYNC= "now SIGNAL m1_cont";
 
 connection master;
 DROP TABLE t1;
+SET DEBUG_SYNC= "RESET";
 
 disable_warnings;
 UNINSTALL PLUGIN rpl_semi_sync_master;

mysql-test/suite/rpl/t/rpl_start_slave_deadlock_sys_vars.test

@@ -53,5 +53,6 @@ disconnect slave2;
 connection slave;
 --echo # cleanup
 SET @@GLOBAL.slave_net_timeout = @save_slave_net_timeout;
+SET DEBUG_SYNC='RESET';
 
 source include/rpl_end.inc;

mysql-test/suite/rpl/t/rpl_stop_slave.test

@@ -107,7 +107,6 @@ ROLLBACK;
 --source include/rpl_connection_master.inc
 SET DEBUG_SYNC= 'now SIGNAL signal.continue';
 SET DEBUG_SYNC= 'now WAIT_FOR signal.continued';
-SET DEBUG_SYNC= 'RESET';
 
 --source include/rpl_connection_slave.inc
 source include/wait_for_slave_to_stop.inc;
@@ -122,3 +121,4 @@ DROP TABLE t1, t2;
 eval SET GLOBAL debug_dbug= '$debug_save';
 --enable_query_log
 --source include/rpl_end.inc
+SET DEBUG_SYNC= 'RESET';

mysql-test/t/myisam_optimize.test

@@ -44,4 +44,5 @@ disconnect con2;
 connection default;
 
 drop table t1;
+set debug_sync='reset';
 

mysql-test/t/processlist.test

@@ -32,4 +32,4 @@ connection default;
 select command, time < 5 from information_schema.processlist where id != connection_id();
 
 disconnect con1;
-
+set debug_sync='reset';

mysql-test/t/quick_select_4161.test

@@ -50,4 +50,5 @@ connection default;
 disconnect killee;
 
 drop table t1;
+set debug_sync='reset';
 

storage/tokudb/mysql-test/tokudb_mariadb/r/optimize.result

@@ -11,3 +11,4 @@ set debug_sync='now SIGNAL go';
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
 drop table t1;
+set debug_sync='reset';

storage/tokudb/mysql-test/tokudb_mariadb/t/optimize.test

@@ -14,4 +14,5 @@ connection default;
 
 reap;
 drop table t1;
+set debug_sync='reset';