Update tests to follow new syntax.

tests/arab_to_roman.aer

@@ -1,6 +1,6 @@
 class Program {
 
-	private function num2Roman(int $num) {
+	private string num2Roman(int $num) {
 		int $n = intval($num);
 		string $result = '';
 		int[] $lookup = array('M' => 1000, 'CM' => 900, 'D' => 500, 'CD' => 400,
@@ -16,7 +16,7 @@ class Program {
 		return $result;
 	}
 
-	public function main() {
+	public void main() {
 		print('   7 => ' + $this->num2Roman(7) + "\n");	
 		print('   9 => ' + $this->num2Roman(9) + "\n");	
 		print('  11 => ' + $this->num2Roman(11) + "\n");	

tests/callback_function.aer

@@ -1,6 +1,6 @@
 class Program {
 
-	function main(string[] $args) {
+	void main(string[] $args) {
 		callback $y = void() {
 			callback $a = 'printf';
 			$a("I'm alive\n");

tests/debug_backtrace.aer

@@ -1,10 +1,10 @@
 class Program {
 
-	function main() {
+	void main() {
 		$this->b($this->a('First A'), $this->a('Second A'), $this->a('Third A'));
 	}
 
-	function a(string $p) {
+	string a(string $p) {
 		mixed[] $backtrace = debug_backtrace();
 		if(isset($backtrace[0]['args'])) {
 			var_export($backtrace[0]['args']);
@@ -14,7 +14,7 @@ class Program {
 		return $p;
 	}
 
-	function b(string $p1, string $p2, string $p3) {
+	void b(string $p1, string $p2, string $p3) {
 		print("$p1, $p2, $p3");
 	}
 

tests/factorial_test.aer

@@ -1,13 +1,13 @@
 class Program {
 
-	function factorial(int $num) {
+	int factorial(int $num) {
 		if($num == 0 || $num == 1)
 			return 1;
 		else
 			return $num * $this->factorial($num - 1);
 	}
 
-	function main() {
+	void main() {
 		int $num = 7;
 		print('Factorial of ', $num, ' is ', $this->factorial($num), '.');
 	}

tests/hello_world.aer

@@ -1,6 +1,6 @@
 class Program {
 
-	public function main() {
+	public void main() {
 		print('Hello world!');
 	}
 

tests/load_module.aer

@@ -1,5 +1,5 @@
 final class Program {
-	function main() {
+	void main() {
 		var_dump(function_exists('dummy_function'));
 		var_dump(import('dummy'));
 		var_dump(function_exists('dummy_function'));

tests/overloading_methods.aer

@@ -1,14 +1,14 @@
 class Program {
 
-	function count(int $a, int $b) {
+	void count(int $a, int $b) {
 		print("Counting 2 integers: $a + $b = ", $a + $b, "\n");
 	}
 
-	function count(float $a, float $b) {
+	void count(float $a, float $b) {
 		print("Counting 2 floats: $a + $b = ", $a + $b, "\n");
 	}
 
-	function main() {
+	void main() {
 		$this->count(4.3, 5.7);
 		$this->count(6, 4);
 	}

tests/printf_test.aer

@@ -1,16 +1,16 @@
 class Program {
-	private $s = 'monkey';
+	private string $s = 'monkey';
-	private $t = 'many monkeys';
+	private string $t = 'many monkeys';
-	private $n =  43951789;
+	private int $n =  43951789;
-	private $u = -43951789;
+	private int $u = -43951789;
-	private $c = 65;
+	private char $c = 65;
 
-	public function main() {
+	public void main() {
 		$this->testMonkey();
 		$this->testNumbers();
 	}
 
-	private function testMonkey() {
+	private void testMonkey() {
 		printf("[%s]\n", $this->s);
 		printf("[%10s]\n", $this->s);
 		printf("[%-10s]\n", $this->s);
@@ -19,7 +19,7 @@ class Program {
 		printf("[%10.10s]\n", $this->t);
 	}
 
-	private function testNumbers() {
+	private void testNumbers() {
 		printf("%%b = '%b'\n", $this->n);
 		printf("%%c = '%c'\n", $this->c);
 		printf("%%d = '%d'\n", $this->n);

tests/reference_test.aer

@@ -1,10 +1,10 @@
 class Program {
 
-	function add_by_ref(int &$val) {
+	void add_by_ref(int &$val) {
 		$val += 7;
 	}
 
-	function main() {
+	void main() {
 		int $num = 7;
 		$this->add_by_ref($num);
 		var_dump($num);

tests/singleton_test.aer

@@ -1,11 +1,11 @@
 final class Test {
-	private $value;
+	private int $value;
 
-	private function __construct() {
+	private void __construct() {
 	}
 
 	/* This is singleton */
-	public function getInstance() {
+	public object getInstance() {
 		static object $instance;
 		if(!$instance) {
 			$instance = new Test();
@@ -13,17 +13,17 @@ final class Test {
 		return $instance;
 	}
 
-	public function get() {
+	public int get() {
 		return $this->value;
 	}
 
-	public function set(int $value = 0) {
+	public int set(int $value = 0) {
 		$this->value = $value;
 	}
 }
 
 final class Program {
-	public function main() {
+	public void main() {
 		object $testA = Test::getInstance();
 		$testA->set(5);
 		object $testB = Test::getInstance();

tests/tokenizer.aer

@@ -1,21 +1,21 @@
 class StringTokenizer {
-	private $token;
+	private string $token;
-	private $delim;
+	private string $delim;
 
-	public function __construct(string $str, string $delim = ' ') {
+	public void __construct(string $str, string $delim = ' ') {
 		$this->token = strtok($str, $delim);
 		$this->delim = $delim;
 	}
 
-	public function __destruct() {
+	public void __destruct() {
 		unset($this);
 	}
 
-	public function hasMoreTokens() {
+	public bool hasMoreTokens() {
 		return ($this->token !== false);
 	}
 
-	public function nextToken() {
+	public string nextToken() {
 		string $current = $this->token;
 		$this->token = strtok($this->delim);
 		return $current;
@@ -24,7 +24,7 @@ class StringTokenizer {
 }
 
 class Program {
-	function main() {
+	void main() {
 		string $str = "This is:@\t\n a TEST!";
 		string $delim = " !@:\t\n";
 		object $st = new StringTokenizer($str, $delim);

tests/type_juggle.aer

@@ -1,6 +1,6 @@
 class Program {
 
-	function main() {
+	void main() {
 		mixed $foo;
 		$foo = '0';
 		var_dump($foo);

tests/unicode_characters.aer

@@ -1,6 +1,6 @@
 class Unicode {
 
-	public function unicon(string $str, bool $to_uni = true) {
+	public string unicon(string $str, bool $to_uni = true) {
 		string $cpp;
 		string[] $cp = array('А' => 'А', 'а' => 'а',
 			"Б" => "Б", "б" => "б",
@@ -50,7 +50,7 @@ class Unicode {
 
 final class Program {
 
-	public function main() {
+	public void main() {
 		object $unicode = new Unicode();
 		var_dump($unicode->unicon("ИфйжБЦ"));
 	}

tests/utf8_variables.aer

@@ -1,18 +1,18 @@
 class Program {
-	private $概要 = "AerScript Interpreter";
+	private string $概要 = "AerScript Interpreter";
 
-	public function main() {
+	public void main() {
 		$this->ダウンロード();
 		var_dump($this->概要);
 		var_dump($this->isUTF8('hello'));
 		var_dump($this->isUTF8("すが、基本的な使い方は単純です。かしながら使い方を身につけていきましょう"));
 	}
 
-	private function ダウンロード(){
+	private void ダウンロード(){
 		print($this->概要 + "\n");
 	}
 
-	private function isUTF8(string $str) {
+	private bool isUTF8(string $str) {
 		int $b = 0;
 		int $c = 0;
 		int $bits = 0;