Merge branch '2.6' into 2.7

* 2.6:
  [DebugBundle] Allow alternative destination for dumps
  [DebugBundle] Use output mechanism of dumpers instead of echoing
  [DebugBundle] Always collect dumps
  Fix tests in HHVM
  CS: Pre incrementation/decrementation should be used if possible

Conflicts:
	src/Symfony/Component/Finder/Expression/Glob.php

Author: fabpot

Loader/FileLoader.php

@@ -91,7 +91,7 @@ public function import($resource, $type = null, $ignoreErrors = false, $sourceRe
             }
 
             $resources = is_array($resource) ? $resource : array($resource);
-            for ($i = 0; $i < $resourcesCount = count($resources); $i++) {
+            for ($i = 0; $i < $resourcesCount = count($resources); ++$i) {
                 if (isset(self::$loading[$resources[$i]])) {
                     if ($i == $resourcesCount - 1) {
                         throw new FileLoaderImportCircularReferenceException(array_keys(self::$loading));