unlink() also clears stat cache

Author: ondrejmirtes

src/Analyser/NodeScopeResolver.php

@@ -1913,7 +1913,7 @@ function (MutatingScope $scope) use ($expr, $nodeCallback, $context): Expression
 				$scope = $scope->afterExtractCall();
 			}
 
-			if (isset($functionReflection) && $functionReflection->getName() === 'clearstatcache') {
+			if (isset($functionReflection) && ($functionReflection->getName() === 'clearstatcache' || $functionReflection->getName() === 'unlink')) {
 				$scope = $scope->afterClearstatcacheCall();
 			}
 

tests/PHPStan/Analyser/data/clear-stat-cache.php

@@ -52,3 +52,11 @@ function (string $a, string $b, bool $c): string {
 		assertType('true', $c);
 	}
 };
+
+function (): void {
+	if (file_exists('foo')) {
+		assertType('true', file_exists('foo'));
+		unlink('foo');
+		assertType('bool', file_exists('foo'));
+	}
+};