adjust function name in unit test to reflect the change

Author: ioweb-gr

app/code/Magento/CatalogInventory/Test/Unit/Model/Plugin/ProductLinksTest.php

@@ -52,7 +52,7 @@ public function testAfterGetProductCollectionShow($status, $callCount)
         $this->configMock->expects($this->once())->method('isShowOutOfStock')->willReturn($status);
         $this->stockHelperMock
             ->expects($this->exactly($callCount))
-            ->method('addInStockFilterToCollection')
+            ->method('addIsInStockFilterToCollection')
             ->with($collectionMock);
 
         $this->assertEquals($collectionMock, $this->model->afterGetProductCollection($subjectMock, $collectionMock));