MAGETWO-72259: phpDocumentor Return tag must be an int #10760

Author: ishakhsuvarov

app/code/Magento/Sales/Model/Order.php

@@ -1774,7 +1774,7 @@ public function getTracksCollection()
      */
     public function hasInvoices()
     {
-        return $this->getInvoiceCollection()->count();
+        return (bool)$this->getInvoiceCollection()->count();
     }
 
     /**
@@ -1784,7 +1784,7 @@ public function hasInvoices()
      */
     public function hasShipments()
     {
-        return $this->getShipmentsCollection()->count();
+        return (bool)$this->getShipmentsCollection()->count();
     }
 
     /**
@@ -1794,7 +1794,7 @@ public function hasShipments()
      */
     public function hasCreditmemos()
     {
-        return $this->getCreditmemosCollection()->count();
+        return (bool)$this->getCreditmemosCollection()->count();
     }
 
     /**