feature #32471 Add a new ErrorHandler component (mirror of the Debug component) (yceruto)

This PR was squashed before being merged into the 4.4 branch (closes #32471).

Discussion
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Add a new ErrorHandler component (mirror of the Debug component)

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

On top of symfony/symfony#32470

Commits
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b1b6e80a3d Add a new ErrorHandler component (mirror of the Debug component)

Author: fabpot

Console/Application.php

@@ -19,8 +19,8 @@
 use Symfony\Component\Console\Output\ConsoleOutputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
-use Symfony\Component\Debug\Exception\FatalThrowableError;
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
+use Symfony\Component\ErrorHandler\Exception\FatalThrowableError;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
 use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\HttpKernel\KernelInterface;

FrameworkBundle.php

@@ -29,10 +29,10 @@
 use Symfony\Component\Cache\DependencyInjection\CachePoolPrunerPass;
 use Symfony\Component\Config\Resource\ClassExistenceResource;
 use Symfony\Component\Console\DependencyInjection\AddConsoleCommandPass;
-use Symfony\Component\Debug\ErrorHandler;
 use Symfony\Component\DependencyInjection\Compiler\PassConfig;
 use Symfony\Component\DependencyInjection\Compiler\RegisterReverseContainerPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\ErrorHandler\ErrorHandler;
 use Symfony\Component\ErrorRenderer\DependencyInjection\ErrorRendererPass;
 use Symfony\Component\EventDispatcher\DependencyInjection\RegisterListenersPass;
 use Symfony\Component\Form\DependencyInjection\FormPass;

composer.json

@@ -70,7 +70,6 @@
         "symfony/asset": "<3.4",
         "symfony/browser-kit": "<4.3",
         "symfony/console": "<4.3",
-        "symfony/debug": "<4.4",
         "symfony/dotenv": "<4.2",
         "symfony/dom-crawler": "<4.3",
         "symfony/form": "<4.3",