Merge branch '3.3' into 3.4

* 3.3:
  [HttpKernel] DebugHandlersListener should always replace the existing exception handler
  fix the Composer API being used
  [Debug] Always decorate existing exception handlers to deal with fatal errors
  Enableable ArrayNodeDefinition is disabled for empty configuration
  Fixing a bug where the dump() function depended on bundle ordering
  [Cache] Fix handling of apcu_fetch() edgy behavior
  Add nn (Norwegian Nynorsk) translation files, and improve existing file
  Problem in phar see mergerequest #25579
  [Form] Disallow transform dates beyond the year 9999
  Copied NO language files to the new NB locale.
  [Serializer] DateTimeNormalizer handling of null and empty values (returning null or empty instead of new object)
  [Console] Improve phpdoc on StyleInterface::ask()

Author: nicolas-grekas

Loader/XliffFileLoader.php

@@ -234,16 +234,20 @@ private function fixXmlLocation($schemaSource, $xmlUri)
     {
         $newPath = str_replace('\\', '/', __DIR__).'/schema/dic/xliff-core/xml.xsd';
         $parts = explode('/', $newPath);
+        $locationstart = 'file:///';
         if (0 === stripos($newPath, 'phar://')) {
             $tmpfile = tempnam(sys_get_temp_dir(), 'symfony');
             if ($tmpfile) {
                 copy($newPath, $tmpfile);
                 $parts = explode('/', str_replace('\\', '/', $tmpfile));
+            } else {
+                array_shift($parts);
+                $locationstart = 'phar:///';
             }
         }
 
         $drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';
-        $newPath = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));
+        $newPath = $locationstart.$drive.implode('/', array_map('rawurlencode', $parts));
 
         return str_replace($xmlUri, $newPath, $schemaSource);
     }