Merge branch '3.4' into 4.3

* 3.4:
  Use PHP 7.4 on deps=low

Author: nicolas-grekas

Tests/Compiler/AutowirePassTest.php

@@ -350,6 +350,8 @@ public function testClassNotFoundThrowsException()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testParentClassNotFoundThrowsException()
@@ -626,6 +628,8 @@ public function getCreateResourceTests()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testIgnoreServiceWithClassNotExisting()
@@ -831,6 +835,8 @@ public function testExceptionWhenAliasExists()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testExceptionWhenAliasDoesNotExist()

Tests/Compiler/ResolveBindingsPassTest.php

@@ -62,6 +62,8 @@ public function testUnusedBinding()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testMissingParent()

Tests/Dumper/PhpDumperTest.php

@@ -1044,6 +1044,8 @@ public function testInlineSelfRef()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testHotPathOptimizations()

Tests/Loader/FileLoaderTest.php

@@ -107,6 +107,8 @@ public function testRegisterClasses()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testRegisterClassesWithExclude()
@@ -139,6 +141,8 @@ public function testRegisterClassesWithExclude()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testRegisterClassesWithExcludeAsArray()
@@ -161,6 +165,8 @@ public function testRegisterClassesWithExcludeAsArray()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testNestedRegisterClasses()
@@ -192,6 +198,8 @@ public function testNestedRegisterClasses()
     }
 
     /**
+     * @group issue-32995
+     *
      * @runInSeparateProcess https://github.com/symfony/symfony/issues/32995
      */
     public function testMissingParentClass()