Fix excluded_http_codes not warning when used improperly, fixes #271

Author: Seldaek

DependencyInjection/Configuration.php

@@ -708,6 +708,10 @@ public function getConfigTreeBuilder()
                             ->ifTrue(function ($v) { return 'fingers_crossed' === $v['type'] && !empty($v['excluded_http_codes']) && !empty($v['excluded_404s']); })
                             ->thenInvalid('You can not use excluded_http_codes together with excluded_404s in a FingersCrossedHandler')
                         ->end()
+                        ->validate()
+                            ->ifTrue(function ($v) { return 'fingers_crossed' !== $v['type'] && !empty($v['excluded_http_codes']) || !empty($v['excluded_404s']); })
+                            ->thenInvalid('You can only use excluded_http_codes/excluded_404s with a FingersCrossedHandler definition')
+                        ->end()
                         ->validate()
                             ->ifTrue(function ($v) { return 'filter' === $v['type'] && "DEBUG" !== $v['min_level'] && !empty($v['accepted_levels']); })
                             ->thenInvalid('You can not use min_level together with accepted_levels in a FilterHandler')