[2.3] Remove most refs uses

Author: nicolas-grekas

DataCollector/DoctrineDataCollector.php

@@ -117,8 +117,10 @@ private function sanitizeQueries($connectionName, $queries)
     private function sanitizeQuery($connectionName, $query)
     {
         $query['explainable'] = true;
-        $query['params'] = (array) $query['params'];
-        foreach ($query['params'] as $j => &$param) {
+        if (!is_array($query['params'])) {
+            $query['params'] = array($query['params']);
+        }
+        foreach ($query['params'] as $j => $param) {
             if (isset($query['types'][$j])) {
                 // Transform the param according to the type
                 $type = $query['types'][$j];
@@ -131,7 +133,7 @@ private function sanitizeQuery($connectionName, $query)
                 }
             }
 
-            list($param, $explainable) = $this->sanitizeParam($param);
+            list($query['params'][$j], $explainable) = $this->sanitizeParam($param);
             if (!$explainable) {
                 $query['explainable'] = false;
             }