[HttpClient] Make exceptions public

src/Symfony/Component/HttpClient/Exception/ClientException.php

@@ -18,7 +18,7 @@ use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
  *
  * @author Nicolas Grekas <p@tchwork.com>
  *
- * @internal
+ * @experimental in 4.3
  */
 final class ClientException extends \RuntimeException implements ClientExceptionInterface
 {

src/Symfony/Component/HttpClient/Exception/InvalidArgumentException.php

@@ -16,7 +16,7 @@ use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 /**
  * @author Nicolas Grekas <p@tchwork.com>
  *
- * @internal
+ * @experimental in 4.3
  */
 final class InvalidArgumentException extends \InvalidArgumentException implements TransportExceptionInterface
 {

src/Symfony/Component/HttpClient/Exception/JsonException.php

@@ -18,7 +18,7 @@ use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
  *
  * @author Nicolas Grekas <p@tchwork.com>
  *
- * @internal
+ * @experimental in 4.3
  */
 final class JsonException extends \JsonException implements TransportExceptionInterface
 {

src/Symfony/Component/HttpClient/Exception/RedirectionException.php

@@ -18,7 +18,7 @@ use Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface;
  *
  * @author Nicolas Grekas <p@tchwork.com>
  *
- * @internal
+ * @experimental in 4.3
  */
 final class RedirectionException extends \RuntimeException implements RedirectionExceptionInterface
 {

src/Symfony/Component/HttpClient/Exception/ServerException.php

@@ -18,7 +18,7 @@ use Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface;
  *
  * @author Nicolas Grekas <p@tchwork.com>
  *
- * @internal
+ * @experimental in 4.3
  */
 final class ServerException extends \RuntimeException implements ServerExceptionInterface
 {

src/Symfony/Component/HttpClient/Exception/TransportException.php

@@ -16,7 +16,7 @@ use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 /**
  * @author Nicolas Grekas <p@tchwork.com>
  *
- * @internal
+ * @experimental in 4.3
  */
 final class TransportException extends \RuntimeException implements TransportExceptionInterface
 {