bug #16338 [VarDumper] Fix anonymous class dumping (nicolas-grekas)

This PR was merged into the 2.7 branch.

Discussion
----------

[VarDumper] Fix anonymous class dumping

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

Follows a comment from @stof

Commits
-------

65da4d5 [VarDumper] Fix anonymous class dumping

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

@@ -55,7 +55,7 @@ class Caster
                 if (!isset($k[0]) || ("\0" !== $k[0] && !$reflector->hasProperty($k))) {
                     $p[$i] = self::PREFIX_DYNAMIC.$k;
                 } elseif (isset($k[16]) && "\0" === $k[16] && 0 === strpos($k, "\0class@anonymous\0")) {
-                    $p[$i] = "\0anonymous-".$reflector->name.strrchr($k, "\0");
+                    $p[$i] = "\0".$reflector->getParentClass().'@anonymous'.strrchr($k, "\0");
                 }
             }
             $a = array_combine($p, $a);

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

@@ -209,14 +209,12 @@ abstract class AbstractCloner implements ClonerInterface
         $class = $stub->class;
 
         if (isset($class[15]) && "\0" === $class[15] && 0 === strpos($class, "class@anonymous\x00")) {
-            $class = get_parent_class($class);
-            $stub->class = 'anonymous-'.$class;
+            $stub->class = get_parent_class($class).'@anonymous';
         }
         if (isset($this->classInfo[$class])) {
             $classInfo = $this->classInfo[$class];
         } else {
             $classInfo = array(
-                $class,
                 new \ReflectionClass($class),
                 array_reverse(array($class => $class) + class_parents($class) + class_implements($class) + array('*' => '*')),
             );
@@ -224,9 +222,9 @@ abstract class AbstractCloner implements ClonerInterface
             $this->classInfo[$class] = $classInfo;
         }
 
-        $a = $this->callCaster('Symfony\Component\VarDumper\Caster\Caster::castObject', $obj, $classInfo[1], null, $isNested);
+        $a = $this->callCaster('Symfony\Component\VarDumper\Caster\Caster::castObject', $obj, $classInfo[0], null, $isNested);
 
-        foreach ($classInfo[2] as $p) {
+        foreach ($classInfo[1] as $p) {
             if (!empty($this->casters[$p = strtolower($p)])) {
                 foreach ($this->casters[$p] as $p) {
                     $a = $this->callCaster($p, $obj, $a, $stub, $isNested);

src/Symfony/Component/VarDumper/Tests/Caster/CasterTest.php

@@ -157,7 +157,18 @@ class CasterTest extends VarDumperTestCase
 
         $this->assertDumpMatchesFormat(
             <<<'EOTXT'
-anonymous-stdClass {
+stdClass@anonymous {
+  -foo: "foo"
+}
+EOTXT
+            , $c
+        );
+
+        $c = eval('return new class { private $foo = "foo"; };');
+
+        $this->assertDumpMatchesFormat(
+            <<<'EOTXT'
+@anonymous {
   -foo: "foo"
 }
 EOTXT