Fix storing results of first class callable expressions

Author: ondrejmirtes

src/Analyser/NodeScopeResolver.php

@@ -2571,7 +2571,7 @@ public function processExprNode(
 			}
 
 			$newExprResult = $this->processExprNode($stmt, $newExpr, $scope, $storage, $nodeCallback, $context);
-			$storage->storeResult($expr, $newExprResult);
+			$this->storeResult($storage, $expr, $newExprResult);
 			return $newExprResult;
 		}