minor #57901 Code style change in `@PER-CS2.0 affecting @Symfony` (parentheses for anonymous classes) (bonroyage)

This PR was squashed before being merged into the 7.2 branch.

Discussion
----------

Code style change in ``@PER`-CS2.0` affecting ``@Symfony`` (parentheses for anonymous classes)

| Q             | A
| ------------- | ---
| Branch?       | 7.2
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

I have created a PR (PHP-CS-Fixer/PHP-CS-Fixer#8140) in the PHP-CS-Fixer repo to bring the ``@PER`-CS2.0` ruleset in line with the specifications on the `new_with_parentheses` rule for anonymous classes. Since the ``@Symfony`` ruleset builds upon the ``@PER`-CS2.0` ruleset, they would like confirmation that the Symfony community is OK with this change affecting the Symfony ruleset as well. Should it not be, I'll push another commit there ensuring that the change does not affect ``@Symfony``.

Therefore, this PR is not meant to be merged, but function as an RFC to get your opinion and show the effect it would have when applied to the Symfony source.

Commits
-------

506e0dd327 Code style change in ``@PER`-CS2.0` affecting ``@Symfony`` (parentheses for anonymous classes)

Author: derrabus

Internal/Hydrator.php

@@ -64,11 +64,11 @@ public static function getHydrator($class)
                 return $baseHydrator;
 
             case 'ErrorException':
-                return $baseHydrator->bindTo(null, new class() extends \ErrorException {
+                return $baseHydrator->bindTo(null, new class extends \ErrorException {
                 });
 
             case 'TypeError':
-                return $baseHydrator->bindTo(null, new class() extends \Error {
+                return $baseHydrator->bindTo(null, new class extends \Error {
                 });
 
             case 'SplObjectStorage':
@@ -166,11 +166,11 @@ public static function getSimpleHydrator($class)
                 return $baseHydrator;
 
             case 'ErrorException':
-                return $baseHydrator->bindTo(new \stdClass(), new class() extends \ErrorException {
+                return $baseHydrator->bindTo(new \stdClass(), new class extends \ErrorException {
                 });
 
             case 'TypeError':
-                return $baseHydrator->bindTo(new \stdClass(), new class() extends \Error {
+                return $baseHydrator->bindTo(new \stdClass(), new class extends \Error {
                 });
 
             case 'SplObjectStorage':

Tests/LazyGhostTraitTest.php

@@ -225,7 +225,7 @@ public function testReflectionPropertyGetValue()
 
     public function testIndirectModification()
     {
-        $obj = new class() {
+        $obj = new class {
             public array $foo;
         };
         $proxy = $this->createLazyGhost($obj::class, fn () => null);

Tests/LazyProxyTraitTest.php

@@ -205,7 +205,7 @@ public function testOverwritePropClass()
 
     public function testWither()
     {
-        $obj = new class() {
+        $obj = new class {
             public $foo = 123;
 
             public function withFoo($foo): static
@@ -226,7 +226,7 @@ public function withFoo($foo): static
 
     public function testFluent()
     {
-        $obj = new class() {
+        $obj = new class {
             public $foo = 123;
 
             public function setFoo($foo): static
@@ -244,7 +244,7 @@ public function setFoo($foo): static
 
     public function testIndirectModification()
     {
-        $obj = new class() {
+        $obj = new class {
             public array $foo;
         };
         $proxy = $this->createLazyProxy($obj::class, fn () => $obj);
@@ -268,7 +268,7 @@ public function testReadOnlyClass()
 
     public function testLazyDecoratorClass()
     {
-        $obj = new class() extends TestClass {
+        $obj = new class extends TestClass {
             use LazyProxyTrait {
                 createLazyProxy as private;
             }

Tests/ProxyHelperTest.php

@@ -170,7 +170,7 @@ public function testGenerateLazyProxyForClassWithUnserializeMagicMethod(object $
 
     public static function classWithUnserializeMagicMethodProvider(): iterable
     {
-        yield 'not type hinted __unserialize method' => [new class() {
+        yield 'not type hinted __unserialize method' => [new class {
             public function __unserialize($array)
             {
             }
@@ -190,7 +190,7 @@ public function __unserialize($data): void
         }
         EOPHP];
 
-        yield 'type hinted __unserialize method' => [new class() {
+        yield 'type hinted __unserialize method' => [new class {
             public function __unserialize(array $array)
             {
             }
@@ -220,7 +220,7 @@ public function foo(#[\SensitiveParameter] $a): int
 
         EOPHP;
 
-        $class = new \ReflectionClass(new class() {
+        $class = new \ReflectionClass(new class {
             #[SomeAttribute]
             public function foo(#[\SensitiveParameter, AnotherAttribute] $a): int
             {

Tests/VarExporterTest.php

@@ -65,7 +65,7 @@ public static function provideFailingSerialization()
         yield [$h = fopen(__FILE__, 'r')];
         yield [[$h]];
 
-        $a = new class() {
+        $a = new class {
         };
 
         yield [$a];