Fixed test suite failures with --ps-protocol introduced in PB by

the patch for bug #33834.

mysql-test/t/func_time.test

@@ -336,7 +336,7 @@ select date_add(date,INTERVAL "1" QUARTER) from t1;
 select timestampadd(MINUTE, 1, date) from t1;
 select timestampadd(WEEK, 1, date) from t1;
 select timestampadd(SQL_TSI_SECOND, 1, date) from t1;
-# Prepared statements doesn't support FRAC_SECOND yet
+# mysqltest.c discards an expected 'deprecated' warning on prepare stage
 --disable_ps_protocol
 select timestampadd(SQL_TSI_FRAC_SECOND, 1, date) from t1;
 --enable_ps_protocol
@@ -351,7 +351,10 @@ select timestampdiff(SQL_TSI_HOUR, '2001-02-01', '2001-05-01') as a;
 select timestampdiff(SQL_TSI_DAY, '2001-02-01', '2001-05-01') as a;
 select timestampdiff(SQL_TSI_MINUTE, '2001-02-01 12:59:59', '2001-05-01 12:58:59') as a;
 select timestampdiff(SQL_TSI_SECOND, '2001-02-01 12:59:59', '2001-05-01 12:58:58') as a;
+# mysqltest.c discards an expected 'deprecated' warning on prepare stage
+--disable_ps_protocol
 select timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a;
+--enable_ps_protocol
 
 select timestampdiff(SQL_TSI_DAY, '1986-02-01', '1986-03-01') as a1,
        timestampdiff(SQL_TSI_DAY, '1900-02-01', '1900-03-01') as a2,
@@ -810,8 +813,11 @@ select LAST_DAY('2007-12-06 08:59:19.05') - INTERVAL 1 SECOND;
 # Show that he use of FRAC_SECOND, for anything other than
 # TIMESTAMPADD / TIMESTAMPDIFF, is a server error.
 
+# mysqltest.c discards an expected 'deprecated' warning on prepare stage
+--disable_ps_protocol
 SELECT TIMESTAMPADD(FRAC_SECOND, 1, '2008-02-18');
 SELECT TIMESTAMPDIFF(FRAC_SECOND, '2008-02-17', '2008-02-18');
+--enable_ps_protocol
 
 --error ER_PARSE_ERROR
 SELECT DATE_ADD('2008-02-18', INTERVAL 1 FRAC_SECOND);