PhpFile::__toString(): brackets are no longer set when generating classes from global namespace only

Author: castamir

src/PhpGenerator/PhpFile.php

@@ -114,7 +114,7 @@ public function addNamespace($name)
 	public function __toString()
 	{
 		foreach ($this->namespaces as $namespace) {
-			$namespace->setBracketedSyntax(isset($this->namespaces[NULL]));
+			$namespace->setBracketedSyntax(count($this->namespaces) > 1 && isset($this->namespaces[NULL]));
 		}
 
 		return Strings::normalize(

tests/PhpGenerator/PhpFile.globalNamespace.expect

@@ -0,0 +1,4 @@
+<?php
+class A
+{
+}

tests/PhpGenerator/PhpFile.phpt

@@ -73,3 +73,8 @@ $file->addClass('H');
 $file->addClass('FooBar\\I');
 
 Assert::matchFile(__DIR__ . '/PhpFile.bracketed.expect', (string) $file);
+
+$file = new PhpFile;
+$file->addClass('A');
+
+Assert::matchFile(__DIR__ . '/PhpFile.globalNamespace.expect', (string) $file);