Merge branch '4.2' into short-array-master

* 4.2:
  fixed CS
  fixed CS
  fixed tests
  fixed CS
  fixed CS
  fixed CS
  fixed short array CS in comments
  fixed CS in ExpressionLanguage fixtures
  fixed CS in generated files
  fixed CS on generated container files
  fixed CS on Form PHP templates
  fixed CS on YAML fixtures
  fixed fixtures
  switched array() to []

Author: fabpot

Filesystem.php

@@ -59,7 +59,7 @@ public function copy($originFile, $targetFile, $overwriteNewerFiles = false)
             }
 
             // Stream context created to allow files overwrite when using FTP stream wrapper - disabled by default
-            if (false === $target = @fopen($targetFile, 'w', null, stream_context_create(array('ftp' => array('overwrite' => true))))) {
+            if (false === $target = @fopen($targetFile, 'w', null, stream_context_create(['ftp' => ['overwrite' => true]]))) {
                 throw new IOException(sprintf('Failed to copy "%s" to "%s" because target file could not be opened for writing.', $originFile, $targetFile), 0, null, $originFile);
             }
 
@@ -165,7 +165,7 @@ public function remove($files)
         if ($files instanceof \Traversable) {
             $files = iterator_to_array($files, false);
         } elseif (!\is_array($files)) {
-            $files = array($files);
+            $files = [$files];
         }
         $files = array_reverse($files);
         foreach ($files as $file) {
@@ -282,7 +282,7 @@ public function rename($origin, $target, $overwrite = false)
         if (true !== @rename($origin, $target)) {
             if (is_dir($origin)) {
                 // See https://bugs.php.net/bug.php?id=54097 & http://php.net/manual/en/function.rename.php#113943
-                $this->mirror($origin, $target, null, array('override' => $overwrite, 'delete' => $overwrite));
+                $this->mirror($origin, $target, null, ['override' => $overwrite, 'delete' => $overwrite]);
                 $this->remove($origin);
 
                 return;
@@ -476,7 +476,7 @@ public function makePathRelative($endPath, $startPath)
         $endPathArr = explode('/', trim($endPath, '/'));
 
         $normalizePathArray = function ($pathSegments) {
-            $result = array();
+            $result = [];
 
             foreach ($pathSegments as $segment) {
                 if ('..' === $segment) {
@@ -535,7 +535,7 @@ public function makePathRelative($endPath, $startPath)
      *
      * @throws IOException When file type is unknown
      */
-    public function mirror($originDir, $targetDir, \Traversable $iterator = null, $options = array())
+    public function mirror($originDir, $targetDir, \Traversable $iterator = null, $options = [])
     {
         $targetDir = rtrim($targetDir, '/\\');
         $originDir = rtrim($originDir, '/\\');
@@ -727,17 +727,17 @@ public function appendToFile($filename, $content)
 
     private function toIterable($files): iterable
     {
-        return \is_array($files) || $files instanceof \Traversable ? $files : array($files);
+        return \is_array($files) || $files instanceof \Traversable ? $files : [$files];
     }
 
     /**
-     * Gets a 2-tuple of scheme (may be null) and hierarchical part of a filename (e.g. file:///tmp -> array(file, tmp)).
+     * Gets a 2-tuple of scheme (may be null) and hierarchical part of a filename (e.g. file:///tmp -> [file, tmp]).
      */
     private function getSchemeAndHierarchy(string $filename): array
     {
         $components = explode('://', $filename, 2);
 
-        return 2 === \count($components) ? array($components[0], $components[1]) : array(null, $components[0]);
+        return 2 === \count($components) ? [$components[0], $components[1]] : [null, $components[0]];
     }
 
     private static function box($func)