[CodeQuality] Skip union type on UseIdenticalOverEqualWithSameTypeRector (#7975)

* [CodeQuality] Skip union type on UseIdenticalOverEqualWithSameTypeRector

* [CodeQuality] Skip union type on UseIdenticalOverEqualWithSameTypeRector

* trigger CI

Author: samsonasik

rules-tests/CodeQuality/Rector/Equal/UseIdenticalOverEqualWithSameTypeRector/Fixture/skip_union.php.inc

@@ -0,0 +1,9 @@
+<?php
+
+final class SkipUnion
+{
+    public function run(int|string|float $firstValue, int|string|float $secondValue)
+    {
+        return $firstValue == $secondValue;
+    }
+}

rules/CodeQuality/Rector/Equal/UseIdenticalOverEqualWithSameTypeRector.php

@@ -18,6 +18,7 @@
 use PHPStan\Type\StringType;
 use PHPStan\Type\Type;
 use PHPStan\Type\TypeTraverser;
+use PHPStan\Type\UnionType;
 use Rector\NodeTypeResolver\Node\AttributeKey;
 use Rector\Rector\AbstractRector;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
@@ -96,6 +97,10 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
+        if ($normalizedLeftType instanceof UnionType) {
+            return null;
+        }
+
         return $this->processIdenticalOrNotIdentical($node);
     }