add deprecation reference to NarrowTooWideReturnTypeRector

Author: TomasVotruba

rules/DeadCode/Rector/FunctionLike/NarrowTooWideReturnTypeRector.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\DeadCode\Rector\FunctionLike;
+
+use PhpParser\Node;
+use PhpParser\Node\Stmt\ClassMethod;
+use Rector\Configuration\Deprecation\Contract\DeprecatedInterface;
+use Rector\Exception\ShouldNotHappenException;
+use Rector\Rector\AbstractRector;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @deprecated as renamed to \Rector\DeadCode\Rector\FunctionLike\NarrowWideUnionReturnTypeRector
+ */
+final class NarrowTooWideReturnTypeRector extends AbstractRector implements DeprecatedInterface
+{
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition('Deprecated', []);
+    }
+
+    public function getNodeTypes(): array
+    {
+        return [ClassMethod::class];
+    }
+
+    public function refactor(Node $node)
+    {
+        throw new ShouldNotHappenException(sprintf(
+            'Class "%s" is deprecated and renamed to "%s". Use the new class instead.',
+            self::class,
+            NarrowWideUnionReturnTypeRector::class
+        ));
+    }
+}