feature #27766 [VarDumper] show proxified class on hover (nicolas-gre…

…kas)

This PR was merged into the 4.2-dev branch.

Discussion
----------

[VarDumper] show proxified class on hover

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

![capture d ecran de 2018-06-29 08-18-59](https://user-images.githubusercontent.com/243674/42076362-2ab0dd1c-7b75-11e8-9243-5e2f78afe870.png)

Commits
-------

955494c [VarDumper] show proxified class on hover

src/Symfony/Component/VarDumper/Caster/ProxyManagerCaster.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\VarDumper\Caster;
+
+use ProxyManager\Proxy\ProxyInterface;
+use Symfony\Component\VarDumper\Cloner\Stub;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ProxyManagerCaster
+{
+    public static function castProxy(ProxyInterface $c, array $a, Stub $stub, $isNested)
+    {
+        if ($parent = \get_parent_class($c)) {
+            $stub->class .= ' - '.$parent;
+        }
+        $stub->class .= '@proxy';
+
+        return $a;
+    }
+}

src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php

@@ -81,6 +81,7 @@ abstract class AbstractCloner implements ClonerInterface
         'Symfony\Component\VarDumper\Caster\FrameStub' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castFrameStub'),
         'Symfony\Component\Debug\Exception\SilencedErrorContext' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castSilencedErrorContext'),
 
+        'ProxyManager\Proxy\ProxyInterface' => array('Symfony\Component\VarDumper\Caster\ProxyManagerCaster', 'castProxy'),
         'PHPUnit_Framework_MockObject_MockObject' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
         'Prophecy\Prophecy\ProphecySubjectInterface' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
         'Mockery\MockInterface' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),