[DI] Always consider abstract getters as autowiring candidates

src/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php

@@ -159,6 +159,10 @@ class AutowirePass extends AbstractRecursivePass
                     continue 2;
                 }
             }
+
+            if ($reflectionMethod->isAbstract() && !$reflectionMethod->getNumberOfParameters()) {
+                $methodsToAutowire[strtolower($reflectionMethod->name)] = $reflectionMethod;
+            }
         }
 
         if ($notFound = array_diff($autowiredMethods, $found)) {
@@ -478,7 +482,7 @@ class AutowirePass extends AbstractRecursivePass
         $this->populateAvailableType($argumentId, $argumentDefinition);
 
         try {
-            $this->processValue($argumentDefinition, true);
+            $this->processValue($argumentDefinition);
             $this->currentId = $currentId;
         } catch (RuntimeException $e) {
             $classOrInterface = $typeHint->isInterface() ? 'interface' : 'class';

src/Symfony/Component/DependencyInjection/Tests/Compiler/AutowirePassTest.php

@@ -14,6 +14,7 @@ namespace Symfony\Component\DependencyInjection\Tests\Compiler;
 use Symfony\Component\DependencyInjection\Compiler\AutowirePass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Tests\Fixtures\AbstractGetterOverriding;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\includes\FooVariadic;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\GetterOverriding;
 
@@ -517,6 +518,27 @@ class AutowirePassTest extends \PHPUnit_Framework_TestCase
         );
     }
 
+    /**
+     * @requires PHP 7.0
+     */
+    public function testAbstractGetterOverriding()
+    {
+        $container = new ContainerBuilder();
+
+        $container
+            ->register('getter_overriding', AbstractGetterOverriding::class)
+            ->setAutowired(true)
+        ;
+
+        $pass = new AutowirePass();
+        $pass->process($container);
+
+        $overridenGetters = $container->getDefinition('getter_overriding')->getOverriddenGetters();
+        $this->assertEquals(array(
+            'abstractgetfoo' => new Reference('autowired.Symfony\Component\DependencyInjection\Tests\Compiler\Foo'),
+        ), $overridenGetters);
+    }
+
     /**
      * @requires PHP 7.1
      */

src/Symfony/Component/DependencyInjection/Tests/Fixtures/AbstractGetterOverriding.php

@@ -0,0 +1,20 @@
+<?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\Component\DependencyInjection\Tests\Fixtures;
+
+use Symfony\Component\DependencyInjection\Tests\Compiler\Foo;
+
+abstract class AbstractGetterOverriding
+{
+    abstract public function abstractGetFoo(): Foo;
+    abstract public function abstractDoFoo($arg = null): Foo;
+}