Fix phpstan/phpstan#13960: Invalid closure.unusedUse error when including external files

phpstan-baseline.neon

@@ -132,12 +132,6 @@ parameters:
 			count: 1
 			path: src/Collectors/Registry.php
 
-		-
-			rawMessage: Anonymous function has an unused use $container.
-			identifier: closure.unusedUse
-			count: 1
-			path: src/Command/CommandHelper.php
-
 		-
 			rawMessage: 'Call to static method expand() of internal class Nette\DI\Helpers from outside its root namespace Nette.'
 			identifier: staticMethod.internalClass
@@ -759,12 +753,6 @@ parameters:
 			count: 1
 			path: src/Testing/LevelsTestCase.php
 
-		-
-			rawMessage: Anonymous function has an unused use $container.
-			identifier: closure.unusedUse
-			count: 1
-			path: src/Testing/PHPStanTestCase.php
-
 		-
 			rawMessage: 'Doing instanceof PHPStan\Type\ConstantScalarType is error-prone and deprecated. Use Type::isConstantScalarValue() or Type::getConstantScalarTypes() or Type::getConstantScalarValues() instead.'
 			identifier: phpstanApi.instanceofType

src/Rules/UnusedFunctionParametersCheck.php

@@ -79,6 +79,9 @@ private function getUsedVariables(Scope $scope, $node): array
 					return $scope->getDefinedVariables();
 				}
 			}
+			if ($node instanceof Node\Expr\Include_) {
+				return $scope->getDefinedVariables();
+			}
 			if ($node instanceof Variable && is_string($node->name) && $node->name !== 'this') {
 				return [$node->name];
 			}

tests/PHPStan/Rules/Functions/UnusedClosureUsesRuleTest.php

@@ -35,4 +35,9 @@ public function testUnusedClosureUses(): void
 		]);
 	}
 
+	public function testBug13960(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-13960.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Functions/data/bug-13960.php

@@ -0,0 +1,21 @@
+<?php declare(strict_types = 1);
+
+namespace Bug13960;
+
+$aap = 684;
+
+$a = function() use ($aap) {
+	require __DIR__ . '/echo_the_value_of_aap.php';
+};
+
+$b = function() use ($aap) {
+	include __DIR__ . '/echo_the_value_of_aap.php';
+};
+
+$c = function() use ($aap) {
+	require_once __DIR__ . '/echo_the_value_of_aap.php';
+};
+
+$d = function() use ($aap) {
+	include_once __DIR__ . '/echo_the_value_of_aap.php';
+};