Merge branch '3.4' into 4.3

* 3.4:
  [Intl] Update the ICU data to 65.1
  [VarDumper] fix dumping uninitialized SplFileInfo
  Added missing translations.
  Fixed invalid VarDumper upgrade doc.
  [HttpFoundation] Check if data passed to SessionBagProxy::initialize is an array
  Don't let falsey usernames slip through

Author: nicolas-grekas

Caster/SplCaster.php

@@ -90,6 +90,12 @@ public static function castFileInfo(\SplFileInfo $c, array $a, Stub $stub, $isNe
 
         $prefix = Caster::PREFIX_VIRTUAL;
 
+        if (false === $c->getPathname()) {
+            $a[$prefix.'⚠'] = 'The parent constructor was not called: the object is in an invalid state';
+
+            return $a;
+        }
+
         foreach ($map as $key => $accessor) {
             try {
                 $a[$prefix.$key] = $c->$accessor();

Tests/Caster/SplCasterTest.php

@@ -196,6 +196,18 @@ public function testArrayIterator()
     0 => 234
   ]
 }
+EOTXT;
+        $this->assertDumpEquals($expected, $var);
+    }
+
+    public function testBadSplFileInfo()
+    {
+        $var = new BadSplFileInfo();
+
+        $expected = <<<EOTXT
+Symfony\Component\VarDumper\Tests\Caster\BadSplFileInfo {
+  ⚠: "The parent constructor was not called: the object is in an invalid state"
+}
 EOTXT;
         $this->assertDumpEquals($expected, $var);
     }
@@ -205,3 +217,10 @@ class MyArrayIterator extends \ArrayIterator
 {
     private $foo = 123;
 }
+
+class BadSplFileInfo extends \SplFileInfo
+{
+    public function __construct()
+    {
+    }
+}