Real fix

From composer/composer@42c6a0d
See composer/composer#10050

Author: ondrejmirtes

src/Reflection/BetterReflection/SourceLocator/OptimizedDirectorySourceLocator.php

@@ -202,7 +202,7 @@ private function findSymbols(string $file): array
 		}
 
 		// strip heredocs/nowdocs
-		$contents = preg_replace('{<<<[ \t]*([\'"]?)(\w+)\\1(?:\r\n|\n|\r)(?:.*?)(?:\r\n|\n|\r)(?:\s*)\\2(?=\s+|[;,.)])}s', 'null', $contents);
+		$contents = preg_replace('{<<<[ \t]*([\'"]?)(\w+)\\1(?:\r\n|\n|\r)(?:.*(?=[\r\n]+[ \t]*\\2))[\r\n]+[ \t]*\\2(?=\s*[;,.)])}s', 'null', $contents);
 		if ($contents === null) {
 			return ['classes' => [], 'functions' => []];
 		}

tests/PHPStan/Reflection/BetterReflection/SourceLocator/OptimizedDirectorySourceLocatorTest.php

@@ -140,10 +140,9 @@ public function testBug5525(): void
 		$factory = self::getContainer()->getByType(OptimizedDirectorySourceLocatorFactory::class);
 		$locator = $factory->createByFiles([__DIR__ . '/data/bug-5525.php']);
 		$classReflector = new ClassReflector($locator);
-		$functionReflector = new FunctionReflector($locator, $classReflector);
 
-		$this->expectException(IdentifierNotFound::class);
-		$functionReflector->reflect('spl_autoload_register');
+		$class = $classReflector->reflect(\Faker\Provider\nl_BE\Text::class);
+		$this->assertSame(\Faker\Provider\nl_BE\Text::class, $class->getName());
 	}
 
 }