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

Resources/config/schema/symfony-1.0.xsd

@@ -343,7 +343,7 @@
         </xsd:restriction>
     </xsd:simpleType>
 
-     <xsd:simpleType name="cookie_samesite">
+    <xsd:simpleType name="cookie_samesite">
         <xsd:restriction base="xsd:string">
             <xsd:enumeration value="" />
             <xsd:enumeration value="lax" />

Test/KernelTestCase.php

@@ -112,6 +112,8 @@ protected static function createKernel(array $options = [])
     }
 
     /**
+     * @after
+     *
      * Shuts the kernel down if it was used in the test.
      */
     protected static function ensureKernelShutdown()
@@ -125,12 +127,4 @@ protected static function ensureKernelShutdown()
         }
         static::$container = null;
     }
-
-    /**
-     * Clean up Kernel usage in this test.
-     */
-    protected function tearDown()
-    {
-        static::ensureKernelShutdown();
-    }
 }