Add @var LoadBalancer[] type doc

This avoids a good amount of type warnings in certain IDEs, e.g. in
my PHPStorm.

Change-Id: Id2b99ad48fa2c0d924a1f51b7d2e382eaac7347d

diff --git a/includes/GlobalFunctions.php b/includes/GlobalFunctions.php
index cefa375..23a8bbb 100644 (file)
--- a/includes/GlobalFunctions.php
+++ b/includes/GlobalFunctions.php
@@ -3755,6 +3755,7 @@ function wfWaitForSlaves(
        }
 
        // Figure out which clusters need to be checked
+       /** @var LoadBalancer[] $lbs */
        $lbs = array();
        if ( $cluster === '*' ) {
                wfGetLBFactory()->forEachLB( function ( LoadBalancer $lb ) use ( &$lbs ) {