Merge branch '2.3' into 2.7

* 2.3:
  Improved the PHPdoc of FileSystem::copy()
  [Validator] Test DNS Email constraints using checkdnsrr() mock
  [travis] Run real php subprocesses on hhvm for Process component tests
  bug #18161 [Translation] Add support for fuzzy tags in PoFileLoader
  [Form] Fix NumberToLocalizedStringTransformer::reverseTransform with big integers
  [Form] Fix INT64 cast to float in IntegerType.
  [SecurityBundle][PHPDoc] Added method doumentation for SecurityFactoryInterface
  FrameworkBundle: Client: getContainer(): fixed phpdoc
  [Validator] Updating inaccurate docblock comment

Conflicts:
	.travis.yml
	src/Symfony/Component/Validator/Tests/Constraints/EmailValidatorTest.php

Author: nicolas-grekas

Extension/Core/DataTransformer/NumberToLocalizedStringTransformer.php

@@ -187,7 +187,15 @@ public function reverseTransform($value)
             $value = str_replace(',', $decSep, $value);
         }
 
-        $result = $formatter->parse($value, \NumberFormatter::TYPE_DOUBLE, $position);
+        if (false !== strpos($value, $decSep)) {
+            $type = \NumberFormatter::TYPE_DOUBLE;
+        } else {
+            $type = PHP_INT_SIZE === 8
+                ? \NumberFormatter::TYPE_INT64
+                : \NumberFormatter::TYPE_INT32;
+        }
+
+        $result = $formatter->parse($value, $type, $position);
 
         if (intl_is_failure($formatter->getErrorCode())) {
             throw new TransformationFailedException($formatter->getErrorMessage());

Tests/Extension/Core/DataTransformer/NumberToLocalizedStringTransformerTest.php

@@ -641,4 +641,11 @@ public function testReverseTransformDisallowsTrailingExtraCharactersMultibyte()
 
         $transformer->reverseTransform("12\xc2\xa0345,678foo");
     }
+
+    public function testReverseTransformBigint()
+    {
+        $transformer = new NumberToLocalizedStringTransformer(null, true);
+
+        $this->assertEquals(PHP_INT_MAX - 1, (int) $transformer->reverseTransform((string) (PHP_INT_MAX - 1)));
+    }
 }