Fix build on PHP 7.4

Author: ondrejmirtes

tests/Rules/Classes/RequireParentConstructCallRuleTest.php

@@ -2,6 +2,8 @@
 
 namespace PHPStan\Rules\Classes;
 
+use const PHP_VERSION_ID;
+
 class RequireParentConstructCallRuleTest extends \PHPStan\Testing\RuleTestCase
 {
 
@@ -21,21 +23,17 @@ public function testCallToParentConstructor(): void
 				'BCallToParentConstructor::__construct() does not call parent constructor from ACallToParentConstructor.',
 				51,
 			],
-			[
-				'CCallToParentConstructor::__construct() calls parent constructor but does not extend any class.',
-				61,
-			],
 			[
 				'FCallToParentConstructor::__construct() does not call parent constructor from DCallToParentConstructor.',
-				86,
+				76,
 			],
 			[
 				'BarSoapClient::__construct() does not call parent constructor from SoapClient.',
-				129,
+				119,
 			],
 			[
 				'StaticCallOnAVariable::__construct() does not call parent constructor from FooCallToParentConstructor.',
-				140,
+				130,
 			],
 		]);
 	}
@@ -45,4 +43,17 @@ public function testCheckInTraits(): void
 		$this->analyse([__DIR__ . '/data/call-to-parent-constructor-in-trait.php'], []);
 	}
 
+	public function testCallsParentButHasNotParent(): void
+	{
+		if (PHP_VERSION_ID >= 70400) {
+			$this->markTestSkipped('This test does not support PHP 7.4 or higher.');
+		}
+		$this->analyse([__DIR__ . '/data/call-to-parent-constructor-php-lt-74.php'], [
+			[
+				'CCallToParentConstructor::__construct() calls parent constructor but does not extend any class.',
+				6,
+			],
+		]);
+	}
+
 }

tests/Rules/Classes/data/call-to-parent-constructor-php-lt-74.php

@@ -0,0 +1,11 @@
+<?php
+
+class CCallToParentConstructor
+{
+
+	public function __construct()
+	{
+		parent::__construct();
+	}
+
+}

tests/Rules/Classes/data/call-to-parent-constructor.php

@@ -55,16 +55,6 @@ public function __construct()
 
 }
 
-class CCallToParentConstructor
-{
-
-	public function __construct()
-	{
-		parent::__construct();
-	}
-
-}
-
 class DCallToParentConstructor
 {