[CodeQuality] Allow change empty() to [] compare of other object prop…

…erty usage on SimplifyEmptyCheckOnEmptyArrayRector (#6147)

rules-tests/CodeQuality/Rector/Empty_/SimplifyEmptyCheckOnEmptyArrayRector/Fixture/property_fetch_from_other_object.php.inc

@@ -0,0 +1,31 @@
+<?php
+
+namespace Rector\Tests\CodeQuality\Rector\Empty_\SimplifyEmptyCheckOnEmptyArrayRector\Fixture;
+
+use Rector\Tests\CodeQuality\Rector\Empty_\SimplifyEmptyCheckOnEmptyArrayRector\Source\OtherClass;
+
+final class PropertyFetchFromOtherObject
+{
+    public function isEmptyArray(OtherClass $otherClass): bool
+    {
+        return empty($otherClass->prop);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\CodeQuality\Rector\Empty_\SimplifyEmptyCheckOnEmptyArrayRector\Fixture;
+
+use Rector\Tests\CodeQuality\Rector\Empty_\SimplifyEmptyCheckOnEmptyArrayRector\Source\OtherClass;
+
+final class PropertyFetchFromOtherObject
+{
+    public function isEmptyArray(OtherClass $otherClass): bool
+    {
+        return $otherClass->prop === [];
+    }
+}
+
+?>

rules-tests/CodeQuality/Rector/Empty_/SimplifyEmptyCheckOnEmptyArrayRector/Source/OtherClass.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\CodeQuality\Rector\Empty_\SimplifyEmptyCheckOnEmptyArrayRector\Source;
+
+class OtherClass
+{
+    public array $prop = [];
+}

rules/CodeQuality/Rector/Empty_/SimplifyEmptyCheckOnEmptyArrayRector.php

@@ -120,7 +120,7 @@ private function isAllowedExpr(Expr $expr, Scope $scope): bool
             return false;
         }
 
-        $classReflection = $this->reflectionResolver->resolveClassReflection($expr);
+        $classReflection = $this->reflectionResolver->resolveClassReflectionSourceObject($expr);
         if (! $classReflection instanceof ClassReflection) {
             return false;
         }