Fix tests

Author: ondrejmirtes

tests/PHPStan/Rules/Functions/ExistingClassesInArrowFunctionTypehintsRuleTest.php

@@ -324,6 +324,7 @@ public function testBug5206(): void
 		$this->analyse([__DIR__ . '/data/bug-5206.php'], $errors);
 	}
 
+	#[RequiresPhp('>= 8.2')]
 	public function testNoDiscardVoid(): void
 	{
 		$this->analyse([__DIR__ . '/data/arrow-function-typehints-nodiscard.php'], [

tests/PHPStan/Rules/Functions/ExistingClassesInClosureTypehintsRuleTest.php

@@ -353,6 +353,7 @@ public function testDeprecatedImplicitlyNullableParameterType(): void
 		]);
 	}
 
+	#[RequiresPhp('>= 8.2')]
 	public function testNoDiscardVoid(): void
 	{
 		$this->analyse([__DIR__ . '/data/closure-typehints-nodiscard.php'], [

tests/PHPStan/Rules/Functions/ExistingClassesInTypehintsRuleTest.php

@@ -489,6 +489,7 @@ public function testParamClosureThisClasses(): void
 		]);
 	}
 
+	#[RequiresPhp('>= 8.2')]
 	public function testNoDiscardVoid(): void
 	{
 		$this->analyse([__DIR__ . '/data/typehints-nodiscard.php'], [

tests/PHPStan/Rules/Methods/ExistingClassesInTypehintsRuleTest.php

@@ -599,6 +599,7 @@ public function testBug12501(): void
 		$this->analyse([__DIR__ . '/data/bug-12501.php'], []);
 	}
 
+	#[RequiresPhp('>= 8.2')]
 	public function testNoDiscardVoid(): void
 	{
 		$this->analyse([__DIR__ . '/data/typehints-nodiscard.php'], [