Fix for bug #40702 "skip_name_resolve fails sporadically on

pushbuild".

Under new MTR the server is not restarted for every test, so
threads started in the previous test case can show up in the
results of SHOW PROCESSLIST statement in this test, causing a
test failure.

Since we are not really interested in results of SHOW PROCESSLIST
in this test but rather in fact that server doesn't crash when
executing this statement this fix simply disables output of this
statement.

mysql-test/r/skip_name_resolve.result:
  Disable SHOW PROCESSLIST output to make test immune to threads
  started in previous test cases.
mysql-test/t/skip_name_resolve.test:
  Disable SHOW PROCESSLIST output to make test immune to threads
  started in previous test cases.

mysql-test/r/skip_name_resolve.result

@@ -9,6 +9,3 @@ select user();
 user()
 #
 show processlist;
-Id	User	Host	db	Command	Time	State	Info
-<id>	root	<host>	test	<command>	<time>	<state>	<info>
-<id>	root	<host>	test	<command>	<time>	<state>	<info>

mysql-test/t/skip_name_resolve.test

@@ -15,6 +15,9 @@ DROP USER mysqltest_1@'127.0.0.1/255.255.255.255';
 connect (con1, 127.0.0.1, root, , test, $MASTER_MYPORT, );
 --replace_column 1 #
 select user();
---replace_column 1 <id> 3 <host> 5 <command> 6 <time> 7 <state> 8 <info>
+# We are only interested in the fact that statement below doesn't
+# crash server.
+--disable_result_log
 show processlist;
+--enable_result_log
 connection default;