[DependencyInjection] Fixes a loading order issue

ab7ad4808b introduced a regression when using a parameter in an extension config that is defined in the same file, the ParameterBag can not resolve it

src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php

@@ -44,12 +44,12 @@ class XmlFileLoader extends FileLoader
         // imports
         $this->parseImports($xml, $file);
 
-        // extensions
-        $this->loadFromExtensions($xml);
-
         // parameters
         $this->parseParameters($xml, $file);
 
+        // extensions
+        $this->loadFromExtensions($xml);
+
         // interface injectors
         $this->parseInterfaceInjectors($xml, $file);
 

src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php

@@ -49,9 +49,6 @@ class YamlFileLoader extends FileLoader
         // imports
         $this->parseImports($content, $file);
 
-        // extensions
-        $this->loadFromExtensions($content);
-
         // parameters
         if (isset($content['parameters'])) {
             foreach ($content['parameters'] as $key => $value) {
@@ -59,6 +56,9 @@ class YamlFileLoader extends FileLoader
             }
         }
 
+        // extensions
+        $this->loadFromExtensions($content);
+
         // interface injectors
         $this->parseInterfaceInjectors($content, $file);
 

tests/Symfony/Tests/Component/DependencyInjection/Fixtures/xml/extensions/services1.xml

@@ -13,6 +13,7 @@
 
     <project:bar babar="babar">
         <another />
+        <another2>%project.parameter.foo%</another2>
     </project:bar>
 
 </container>

tests/Symfony/Tests/Component/DependencyInjection/Fixtures/yaml/services10.yml

@@ -5,4 +5,5 @@ services:
     project.service.foo:
         class: BAR
 
-project.bar: ~
+project.bar:
+    test: %project.parameter.foo%