Merge branch '2.3' into 2.7

* 2.3:
  [appveyor] Fix failure reporting

Author: nicolas-grekas

Tests/TranslatorTest.php

@@ -285,12 +285,12 @@ public function testFallbackCatalogueResources()
 
         $resources = $translator->getCatalogue('en')->getResources();
         $this->assertCount(1, $resources);
-        $this->assertContains( __DIR__.'/fixtures/resources.yml', $resources);
+        $this->assertContains( __DIR__.DIRECTORY_SEPARATOR.'fixtures'.DIRECTORY_SEPARATOR.'resources.yml', $resources);
 
         $resources = $translator->getCatalogue('en_GB')->getResources();
         $this->assertCount(2, $resources);
-        $this->assertContains( __DIR__.'/fixtures/empty.yml', $resources);
-        $this->assertContains( __DIR__.'/fixtures/resources.yml', $resources);
+        $this->assertContains( __DIR__.DIRECTORY_SEPARATOR.'fixtures'.DIRECTORY_SEPARATOR.'empty.yml', $resources);
+        $this->assertContains( __DIR__.DIRECTORY_SEPARATOR.'fixtures'.DIRECTORY_SEPARATOR.'resources.yml', $resources);
     }
 
     /**