re use NodeDocblockTypeDecorator

Author: samsonasik

rules/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromAssignsParamToParamReferenceRector.php

@@ -118,14 +118,18 @@ public function refactor(Node $node): ?Node
 
             $assignedExprType = $this->getType($exprs[0]);
             $iterableType = new ArrayType(new MixedType(), $assignedExprType);
-            $this->nodeDocblockTypeDecorator->decorateGenericIterableParamType(
+            $hasParamTypeChanged = $this->nodeDocblockTypeDecorator->decorateGenericIterableParamType(
                 $iterableType,
                 $phpDocInfo,
                 $node,
                 $param,
                 $paramName
             );
 
+            if (! $hasParamTypeChanged) {
+                continue;
+            }
+
             $hasChanged = true;
         }