Fix AnyEvent->timer call (i3#3008)

And make the remaining AnyEvent->condvar and AnyEvent->timer calls
consistent.

Author: stapelberg

testcases/t/268-ipc-config.t

@@ -42,8 +42,8 @@ get_socket_path(0);
 my $i3 = i3(get_socket_path());
 $i3->connect->recv;
 
-my $cv = AE::cv;
-my $timer = AE::timer 0.5, 0, sub { $cv->send(0); };
+my $cv = AnyEvent->condvar;
+my $timer = AnyEvent->timer(after => 0.5, interval => 0, cb => sub { $cv->send(0); });
 
 my $last_config = $i3->get_config()->recv;
 chomp($last_config->{config});

testcases/t/289-ipc-shutdown-event.t

@@ -30,7 +30,7 @@ my $i3 = i3(get_socket_path());
 $i3->connect->recv;
 
 my $cv = AnyEvent->condvar;
-my $timer = AE::timer 0.5, 0, sub { $cv->send(0); };
+my $timer = AnyEvent->timer(after => 0.5, interval => 0, cb => sub { $cv->send(0); });
 
 $i3->subscribe({
         shutdown => sub {
@@ -51,7 +51,7 @@ $i3 = i3(get_socket_path());
 $i3->connect->recv;
 
 $cv = AnyEvent->condvar;
-$timer = AE::timer 0.5, 0, sub { $cv->send(0); };
+$timer = AnyEvent->timer(after => 0.5, interval => 0, cb => sub { $cv->send(0); });
 
 $i3->subscribe({
         shutdown => sub {

testcases/t/525-i3bar-mouse-bindings.t

@@ -39,7 +39,7 @@ $i3->connect()->recv;
 my $ws = fresh_workspace;
 
 my $cv = AnyEvent->condvar;
-my $timer = AnyEvent->timer(1, 0, sub { $cv->send(0) });
+my $timer = AnyEvent->timer(after => 1, interval => 0, cb => sub { $cv->send(0) });
 $i3->subscribe({
         window => sub {
             my ($event) = @_;