[doctrineGH-3935] Add deprecation trigger for EchoSQLLogger.

Author: beberlei

lib/Doctrine/DBAL/Logging/EchoSQLLogger.php

@@ -2,6 +2,8 @@
 
 namespace Doctrine\DBAL\Logging;
 
+use Doctrine\Deprecations\Deprecation;
+
 use function var_dump;
 
 use const PHP_EOL;
@@ -13,6 +15,15 @@
  */
 class EchoSQLLogger implements SQLLogger
 {
+    public function __construct()
+    {
+        Deprecation::trigger(
+            'doctrine/dbal',
+            'https://github.com/doctrine/dbal/pull/3935',
+            'EchoSQLLogger is deprecated without replacement, move code into your project if you rely on it.'
+        );
+    }
+
     /**
      * {@inheritdoc}
      */