Merge branch '3.4' into 4.4

* 3.4:
  [Phpunit] Fix running skipped tests expecting only deprecations
  [DependencyInjection] #35505 Fix typo in test name
  [Yaml][Inline] Fail properly on empty object tag and empty const tag
  Check non-null type for numeric type
  Check value isset to avoid PHP notice
  bug symfony#28179 [DomCrawler] Skip disabled fields processing in Form

Author: nicolas-grekas

Legacy/SymfonyTestsListenerTrait.php

@@ -211,6 +211,10 @@ public function startTest($test)
                 }
             }
 
+            if (!$test->getTestResultObject()) {
+                return;
+            }
+
             $annotations = Test::parseTestMethodAnnotations(\get_class($test), $test->getName(false));
 
             if (isset($annotations['class']['expectedDeprecation'])) {

Tests/OnlyExpectingDeprecationSkippedTest.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\PhpUnit\Tests;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * This test is meant to be skipped.
+ *
+ * @requires extension ext-dummy
+ */
+final class OnlyExpectingDeprecationSkippedTest extends TestCase
+{
+    /**
+     * Do not remove this test in the next major versions.
+     *
+     * @group legacy
+     *
+     * @expectedDeprecation unreachable
+     */
+    public function testExpectingOnlyDeprecations()
+    {
+        $this->fail('should never be ran.');
+    }
+}