Update Composer, update everything

vendor/symfony/http-foundation/Tests/Fixtures/response-functional/common.inc

@@ -0,0 +1,43 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Response;
+
+$parent = __DIR__;
+while (!@file_exists($parent.'/vendor/autoload.php')) {
+    if (!@file_exists($parent)) {
+        // open_basedir restriction in effect
+        break;
+    }
+    if ($parent === dirname($parent)) {
+        echo "vendor/autoload.php not found\n";
+        exit(1);
+    }
+
+    $parent = dirname($parent);
+}
+
+require $parent.'/vendor/autoload.php';
+
+error_reporting(-1);
+ini_set('html_errors', 0);
+ini_set('display_errors', 1);
+
+if (ini_get('xdebug.default_enable')) {
+    xdebug_disable();
+}
+
+header_remove('X-Powered-By');
+header('Content-Type: text/plain; charset=utf-8');
+
+register_shutdown_function(function () {
+    echo "\n";
+    session_write_close();
+    print_r(headers_list());
+    echo "shutdown\n";
+});
+ob_start();
+
+$r = new Response();
+$r->headers->set('Date', 'Sat, 12 Nov 1955 20:04:00 GMT');
+
+return $r;