Fix overriden variadic parameter

src/Reflection/Php/PhpFunctionFromParserNodeReflection.php

@@ -151,7 +151,7 @@ private function getParameters(): array
 			}
 			$parameters[] = new PhpParameterFromParserNodeReflection(
 				$parameter->var->name,
-				$isOptional,
+				$isOptional || $parameter->variadic,
 				$this->realParameterTypes[$parameter->var->name],
 				$this->phpDocParameterTypes[$parameter->var->name] ?? null,
 				$parameter->byRef

tests/PHPStan/Rules/Methods/OverridingMethodRuleTest.php

@@ -5,6 +5,7 @@
 use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\Rule;
 use PHPStan\Testing\RuleTestCase;
+use const PHP_VERSION_ID;
 
 /**
  * @extends RuleTestCase<OverridingMethodRule>
@@ -313,4 +314,10 @@ public function testParle(int $phpVersion, string $contravariantMessage, string
 		]);
 	}
 
+	public function testVariadicParameterIsAlwaysOptional(): void
+	{
+		$this->phpVersionId = PHP_VERSION_ID;
+		$this->analyse([__DIR__ . '/data/variadic-always-optional.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Methods/data/variadic-always-optional.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace VariadicParameterAlwaysOptional;
+
+class Foo
+{
+
+	public function doFoo(string ...$test): void
+	{
+
+	}
+
+	public function doBar(): void
+	{
+
+	}
+
+}
+
+class Bar extends Foo
+{
+
+	public function doFoo(string ...$test): void
+	{
+
+	}
+
+	public function doBar(...$test): void
+	{
+
+	}
+
+}