minor symfony#46102 [VarDumper] Remove casters for mysql link resource and removed DOM classes (fancyweb)

This PR was merged into the 6.1 branch.

Discussion
----------

[VarDumper] Remove casters for mysql link resource and removed DOM classes

| Q             | A
| ------------- | ---
| Branch?       | 6.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

`\DOMTypeinfo`, `\DOMDomError` and `\DOMLocator` have been removed in PHP 8.0 (php/php-src#4707).
`mysql link` resource looks impossible because the `mysql` extension has been removed in PHP 7.0.

Commits
-------

a506f9c [VarDumper] Remove casters for mysql link resource and removed DOM classes

Author: nicolas-grekas

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

@@ -208,43 +208,6 @@ public static function castText(\DOMText $dom, array $a, Stub $stub, bool $isNes
         return $a;
     }
 
-    public static function castTypeinfo(\DOMTypeinfo $dom, array $a, Stub $stub, bool $isNested)
-    {
-        $a += [
-            'typeName' => $dom->typeName,
-            'typeNamespace' => $dom->typeNamespace,
-        ];
-
-        return $a;
-    }
-
-    public static function castDomError(\DOMDomError $dom, array $a, Stub $stub, bool $isNested)
-    {
-        $a += [
-            'severity' => $dom->severity,
-            'message' => $dom->message,
-            'type' => $dom->type,
-            'relatedException' => $dom->relatedException,
-            'related_data' => $dom->related_data,
-            'location' => $dom->location,
-        ];
-
-        return $a;
-    }
-
-    public static function castLocator(\DOMLocator $dom, array $a, Stub $stub, bool $isNested)
-    {
-        $a += [
-            'lineNumber' => $dom->lineNumber,
-            'columnNumber' => $dom->columnNumber,
-            'offset' => $dom->offset,
-            'relatedNode' => $dom->relatedNode,
-            'uri' => $dom->uri ? new LinkStub($dom->uri, $dom->lineNumber) : $dom->uri,
-        ];
-
-        return $a;
-    }
-
     public static function castDocumentType(\DOMDocumentType $dom, array $a, Stub $stub, bool $isNested)
     {
         $a += [

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

@@ -63,15 +63,6 @@ public static function castGd($gd, array $a, Stub $stub, bool $isNested)
         return $a;
     }
 
-    public static function castMysqlLink($h, array $a, Stub $stub, bool $isNested)
-    {
-        $a['host'] = mysql_get_host_info($h);
-        $a['protocol'] = mysql_get_proto_info($h);
-        $a['server'] = mysql_get_server_info($h);
-
-        return $a;
-    }
-
     public static function castOpensslX509($h, array $a, Stub $stub, bool $isNested)
     {
         $stub->cut = -1;

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

@@ -66,9 +66,6 @@ abstract class AbstractCloner implements ClonerInterface
         'DOMAttr' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castAttr'],
         'DOMElement' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castElement'],
         'DOMText' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castText'],
-        'DOMTypeinfo' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castTypeinfo'],
-        'DOMDomError' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDomError'],
-        'DOMLocator' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLocator'],
         'DOMDocumentType' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocumentType'],
         'DOMNotation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNotation'],
         'DOMEntity' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castEntity'],
@@ -163,7 +160,6 @@ abstract class AbstractCloner implements ClonerInterface
         'GdImage' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],
         ':gd' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],
 
-        ':mysql link' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castMysqlLink'],
         ':pgsql large object' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLargeObject'],
         ':pgsql link' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],
         ':pgsql link persistent' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],