Merge branch '4.0'

* 4.0:
  [HttpKernel] DebugHandlersListener should always replace the existing exception handler
  fix the Composer API being used
  [Security] Notify that symfony/expression-language is not installed if ExpressionLanguage and ExpressionLanguagePrivider are 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
  Avoid button label translation when it's set to false
  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)
  Fix options resolver with array allowed types
  [Console] Improve phpdoc on StyleInterface::ask()
  [TwigBridge][WIP] Pass the form-check-inline in parent

Author: nicolas-grekas

OptionsResolver.php

@@ -883,7 +883,7 @@ private function verifyTypes($type, $value, array &$invalidTypes)
             $invalidValues = array_filter( // Filter out valid values, keeping invalid values in the resulting array
                 $value,
                 function ($value) use ($type) {
-                    return (function_exists($isFunction = 'is_'.$type) && !$isFunction($value)) || !$value instanceof $type;
+                    return !self::isValueValidType($type, $value);
                 }
             );
 
@@ -896,7 +896,7 @@ function ($value) use ($type) {
             return false;
         }
 
-        if ((function_exists($isFunction = 'is_'.$type) && $isFunction($value)) || $value instanceof $type) {
+        if (self::isValueValidType($type, $value)) {
             return true;
         }
 
@@ -1064,4 +1064,9 @@ private function formatValues(array $values): string
 
         return implode(', ', $values);
     }
+
+    private static function isValueValidType($type, $value)
+    {
+        return (function_exists($isFunction = 'is_'.$type) && $isFunction($value)) || $value instanceof $type;
+    }
 }

Tests/OptionsResolverTest.php

@@ -486,6 +486,15 @@ public function testSetAllowedTypesFailsIfUnknownOption()
         $this->resolver->setAllowedTypes('foo', 'string');
     }
 
+    public function testResolveTypedArray()
+    {
+        $this->resolver->setDefined('foo');
+        $this->resolver->setAllowedTypes('foo', 'string[]');
+        $options = $this->resolver->resolve(array('foo' => array('bar', 'baz')));
+
+        $this->assertSame(array('foo' => array('bar', 'baz')), $options);
+    }
+
     /**
      * @expectedException \Symfony\Component\OptionsResolver\Exception\AccessException
      */