Merge branch '3.4' into 4.3

* 3.4:
  [DependencyInjection] Fixed the `getServiceIds` implementation to always return aliases

Author: nicolas-grekas

Container.php

@@ -326,7 +326,7 @@ public function reset()
      */
     public function getServiceIds()
     {
-        return array_map('strval', array_unique(array_merge(['service_container'], array_keys($this->fileMap), array_keys($this->methodMap), array_keys($this->services))));
+        return array_map('strval', array_unique(array_merge(['service_container'], array_keys($this->fileMap), array_keys($this->methodMap), array_keys($this->aliases), array_keys($this->services))));
     }
 
     /**

Tests/ContainerTest.php

@@ -139,7 +139,7 @@ public function testGetServiceIds()
 
         $sc = new ProjectServiceContainer();
         $sc->set('foo', $obj = new \stdClass());
-        $this->assertEquals(['service_container', 'bar', 'foo_bar', 'foo.baz', 'circular', 'throw_exception', 'throws_exception_on_service_configuration', 'internal_dependency', 'foo'], $sc->getServiceIds(), '->getServiceIds() returns defined service ids by factory methods in the method map, followed by service ids defined by set()');
+        $this->assertEquals(['service_container', 'bar', 'foo_bar', 'foo.baz', 'circular', 'throw_exception', 'throws_exception_on_service_configuration', 'internal_dependency', 'alias', 'foo'], $sc->getServiceIds(), '->getServiceIds() returns defined service ids by factory methods in the method map, followed by service ids defined by set()');
     }
 
     public function testSet()

Tests/Dumper/PhpDumperTest.php

@@ -1244,6 +1244,30 @@ public function testScalarService()
         $this->assertSame('some value', $container->get('foo'));
     }
 
+    public function testAliasCanBeFoundInTheDumpedContainerWhenBothTheAliasAndTheServiceArePublic()
+    {
+        $container = new ContainerBuilder();
+
+        $container->register('foo', 'stdClass')->setPublic(true);
+        $container->setAlias('bar', 'foo')->setPublic(true);
+
+        $container->compile();
+
+        // Bar is found in the compiled container
+        $service_ids = $container->getServiceIds();
+        $this->assertContains('bar', $service_ids);
+
+        $dumper = new PhpDumper($container);
+        $dump = $dumper->dump(['class' => 'Symfony_DI_PhpDumper_AliasesCanBeFoundInTheDumpedContainer']);
+        eval('?>'.$dump);
+
+        $container = new \Symfony_DI_PhpDumper_AliasesCanBeFoundInTheDumpedContainer();
+
+        // Bar should still be found in the compiled container
+        $service_ids = $container->getServiceIds();
+        $this->assertContains('bar', $service_ids);
+    }
+
     public function testWither()
     {
         $container = new ContainerBuilder();