[Translator] deprecate getMessages in favor of getCatalogue.

UPGRADE-2.8.md

@@ -0,0 +1,24 @@
+UPGRADE FROM 2.7 to 2.8
+=======================
+
+Translator
+----------
+ * The `getMessages()` method of the `Symfony\Component\Translation\Translator` was deprecated and will be removed in
+   Symfony 3.0. You should use the `getCatalogue()` method of the `Symfony\Component\Translation\TranslatorBagInterface`.
+
+   Before:
+
+   ```php
+   $messages = $translator->getMessages();
+   ```
+
+   After:
+
+   ```php
+    $catalogue = $translator->getCatalogue($locale);
+    $messages = $catalogue->all();
+
+    while ($catalogue = $catalogue->getFallbackCatalogue()) {
+        $messages = array_replace_recursive($catalogue->all(), $messages);
+    }
+   ```

src/Symfony/Component/Translation/CHANGELOG.md

@@ -1,6 +1,10 @@
 CHANGELOG
 =========
 
+2.8.0
+-----
+ * deprecated Translator::getMessages(), rely on the TranslatorBagInterface::getCatalogue() method instead.
+
 2.7.0
 -----
 

src/Symfony/Component/Translation/Tests/TranslatorTest.php

@@ -497,9 +497,10 @@ class TranslatorTest extends \PHPUnit_Framework_TestCase
     }
 
     /**
+     * @group legacy
      * @dataProvider dataProviderGetMessages
      */
-    public function testGetMessages($resources, $locale, $expected)
+    public function testLegacyGetMessages($resources, $locale, $expected)
     {
         $locales = array_keys($resources);
         $_locale = !is_null($locale) ? $locale : reset($locales);

src/Symfony/Component/Translation/Translator.php

@@ -292,6 +292,8 @@ class Translator implements TranslatorInterface, TranslatorBagInterface
      */
     public function getMessages($locale = null)
     {
+        trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0. Rely on the TranslatorBagInterface::getCatalogue() method instead', E_USER_DEPRECATED);
+
         $catalogues = array();
         $catalogues[] = $catalogue = $this->getCatalogue($locale);
         while ($catalogue = $catalogue->getFallbackCatalogue()) {