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
-------

b1b6e80 Add a new ErrorHandler component (mirror of the Debug component)

Author: fabpot

DataCollector/LoggerDataCollector.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\HttpKernel\DataCollector;
 
-use Symfony\Component\Debug\Exception\SilencedErrorContext;
+use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestStack;
 use Symfony\Component\HttpFoundation\Response;

DependencyInjection/AddAnnotatedClassesToCachePass.php

@@ -12,9 +12,9 @@
 namespace Symfony\Component\HttpKernel\DependencyInjection;
 
 use Composer\Autoload\ClassLoader;
-use Symfony\Component\Debug\DebugClassLoader;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\ErrorHandler\DebugClassLoader;
 use Symfony\Component\HttpKernel\Kernel;
 
 /**

EventListener/DebugHandlersListener.php

@@ -15,8 +15,8 @@
 use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\Console\Event\ConsoleEvent;
 use Symfony\Component\Console\Output\ConsoleOutputInterface;
-use Symfony\Component\Debug\ErrorHandler;
-use Symfony\Component\Debug\ExceptionHandler;
+use Symfony\Component\ErrorHandler\ErrorHandler;
+use Symfony\Component\ErrorHandler\ExceptionHandler;
 use Symfony\Component\ErrorRenderer\ErrorRenderer;
 use Symfony\Component\ErrorRenderer\ErrorRenderer\HtmlErrorRenderer;
 use Symfony\Component\ErrorRenderer\Exception\ErrorRendererNotFoundException;

Kernel.php

@@ -16,7 +16,6 @@
 use Symfony\Component\Config\ConfigCache;
 use Symfony\Component\Config\Loader\DelegatingLoader;
 use Symfony\Component\Config\Loader\LoaderResolver;
-use Symfony\Component\Debug\DebugClassLoader;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\Compiler\PassConfig;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -29,6 +28,7 @@
 use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
+use Symfony\Component\ErrorHandler\DebugClassLoader;
 use Symfony\Component\Filesystem\Filesystem;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;

Tests/DataCollector/LoggerDataCollectorTest.php

@@ -12,7 +12,7 @@
 namespace Symfony\Component\HttpKernel\Tests\DataCollector;
 
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\Debug\Exception\SilencedErrorContext;
+use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestStack;
 use Symfony\Component\HttpFoundation\Response;
@@ -106,7 +106,7 @@ public function testCollect($nb, $logs, $expectedLogs, $expectedDeprecationCount
         $logs = array_map(function ($v) {
             if (isset($v['context']['exception'])) {
                 $e = &$v['context']['exception'];
-                $e = isset($e["\0*\0message"]) ? [$e["\0*\0message"], $e["\0*\0severity"]] : [$e["\0Symfony\Component\Debug\Exception\SilencedErrorContext\0severity"]];
+                $e = isset($e["\0*\0message"]) ? [$e["\0*\0message"], $e["\0*\0severity"]] : [$e["\0Symfony\Component\ErrorHandler\Exception\SilencedErrorContext\0severity"]];
             }
 
             return $v;

Tests/EventListener/DebugHandlersListenerTest.php

@@ -19,8 +19,8 @@
 use Symfony\Component\Console\Helper\HelperSet;
 use Symfony\Component\Console\Input\ArgvInput;
 use Symfony\Component\Console\Output\ConsoleOutput;
-use Symfony\Component\Debug\ErrorHandler;
-use Symfony\Component\Debug\ExceptionHandler;
+use Symfony\Component\ErrorHandler\ErrorHandler;
+use Symfony\Component\ErrorHandler\ExceptionHandler;
 use Symfony\Component\EventDispatcher\EventDispatcher;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Event\KernelEvent;

composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "symfony/debug": "^4.4|^5.0",
+        "symfony/error-handler": "^4.4|^5.0",
         "symfony/error-renderer": "^4.4|^5.0",
         "symfony/event-dispatcher": "^4.3",
         "symfony/http-foundation": "^4.4|^5.0",