Merge branch '3.4' into 4.2

* 3.4:
  Remove "internal" annotation from datacollector serialization methods
  replace mocks with real objects in tests
  Fix phpunit 8 compatibility
  render integer types with grouping as text input
  ignore _method forms in NativeRequestHandler
  don't lose int precision with not needed type casts

Author: nicolas-grekas

Tests/Extension/AbstractBootstrap3LayoutTest.php

@@ -1900,6 +1900,22 @@ public function testInteger()
         );
     }
 
+    public function testIntegerTypeWithGroupingRendersAsTextInput()
+    {
+        $form = $this->factory->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\IntegerType', 123, [
+            'grouping' => true,
+        ]);
+
+        $this->assertWidgetMatchesXpath($form->createView(), ['attr' => ['class' => 'my&class']],
+'/input
+    [@type="text"]
+    [@name="name"]
+    [@class="my&class form-control"]
+    [@value="123"]
+'
+        );
+    }
+
     public function testLanguage()
     {
         $form = $this->factory->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\LanguageType', 'de');

composer.json

@@ -24,7 +24,7 @@
         "symfony/asset": "~3.4|~4.0",
         "symfony/dependency-injection": "~3.4|~4.0",
         "symfony/finder": "~3.4|~4.0",
-        "symfony/form": "^4.2.3",
+        "symfony/form": "^4.2.4",
         "symfony/http-foundation": "~3.4|~4.0",
         "symfony/http-kernel": "~3.4|~4.0",
         "symfony/polyfill-intl-icu": "~1.0",
@@ -43,7 +43,7 @@
     },
     "conflict": {
         "symfony/console": "<3.4",
-        "symfony/form": "<4.2.3",
+        "symfony/form": "<4.2.4",
         "symfony/translation": "<4.2"
     },
     "suggest": {