Make LoggerChain use constructor to add loggers instead of adder method

UPGRADE.md

@@ -42,6 +42,10 @@ The  `Doctrine\DBAL\Driver\SQLSrv\SQLSrvStatement::LAST_INSERT_ID_SQL` constant
 
 The constants in `Doctrine\DBAL\SQLParserUtils` have been deprecated and will be made private in 3.0.
 
+## Deprecated `LoggerChain::addLogger` method
+
+The `Doctrine\DBAL\Logging\LoggerChain::addLogger` method has been deprecated. Inject list of loggers via constructor instead.
+
 # Upgrade to 2.9
 
 ## Deprecated `Statement::fetchColumn()` with an invalid index

lib/Doctrine/DBAL/Logging/LoggerChain.php

@@ -10,9 +10,19 @@ class LoggerChain implements SQLLogger
     /** @var SQLLogger[] */
     private $loggers = [];
 
+    /**
+     * @param SQLLogger[] $loggers
+     */
+    public function __construct(array $loggers = [])
+    {
+        $this->loggers = $loggers;
+    }
+
     /**
      * Adds a logger in the chain.
      *
+     * @deprecated Inject list of loggers via constructor instead
+     *
      * @return void
      */
     public function addLogger(SQLLogger $logger)