Temporarily fix tests.

tests/arab_to_roman.aer

@@ -1,14 +1,15 @@
 class Program {
 
 	private function num2Roman(int $num) {
-		$n = intval($num);
-		$result = '';
-		$lookup = array('M' => 1000, 'CM' => 900, 'D' => 500, 'CD' => 400,
+		int $n = intval($num);
+		int $result = '';
+		mixed $lookup = array('M' => 1000, 'CM' => 900, 'D' => 500, 'CD' => 400,
 			'C' => 100, 'XC' => 90, 'L' => 50, 'XL' => 40,
 			'X' => 10, 'IX' => 9, 'V' => 5, 'IV' => 4, 'I' => 1);
 
+		int $matches;
 		foreach($lookup as $roman => $value) {
-			$matches = intval($n / $value);
+			 $matches = intval($n / $value);
 			$result += str_repeat($roman, $matches);
 			$n = $n % $value;
 		}

tests/debug_backtrace.aer

@@ -5,7 +5,7 @@ class Program {
 	}
 
 	function a(string $p) {
-		$backtrace = debug_backtrace();
+		mixed $backtrace = debug_backtrace();
 		if(isset($backtrace[0]['args'])) {
 			var_export($backtrace[0]['args']);
 		} else {

tests/singleton_test.aer

@@ -24,9 +24,9 @@ final class Test {
 
 final class Program {
 	public function main() {
-		$testA = Test::getInstance();
+		object $testA = Test::getInstance();
 		$testA->set(5);
-		$testB = Test::getInstance();
+		object $testB = Test::getInstance();
 		var_dump($testB->get());
 	}
 } /* class */

tests/type_juggle.aer

@@ -1,6 +1,7 @@
 class Program {
 
 	function main() {
+		mixed $foo;
 		$foo = '0';
 		var_dump($foo);
 		$foo += 2;

tests/unicode_characters.aer

@@ -1,7 +1,8 @@
 class Unicode {
 
 	public function unicon(string $str, bool $to_uni = true) {
-		$cp = array('А' => 'А', 'а' => 'а',
+		mixed $cpp;
+		mixed $cp = array('А' => 'А', 'а' => 'а',
 			"Б" => "Б", "б" => "б",
 			"В" => "В", "в" => "в",
 			"Г" => "Г", "г" => "г",
@@ -50,7 +51,7 @@ class Unicode {
 final class Program {
 
 	public function main() {
-		$unicode = new Unicode();
+		object $unicode = new Unicode();
 		var_dump($unicode->unicon("ИфйжБЦ"));
 	}
 

tests/utf8_variables.aer

@@ -13,11 +13,11 @@ class Program {
 	}
 
 	private function isUTF8(string $str) {
-		$b = 0;
-		$c = 0;
-		$bits = 0;
-		$len = strlen($str);
-		for($i = 0; $i < $len; $i++) {
+		int $b = 0;
+		int $c = 0;
+		int $bits = 0;
+		int $len = strlen($str);
+		for(int $i = 0; $i < $len; $i++) {
 			$c = ord($str[$i]);
 			if($c >= 128) {
 				if(($c >= 254)) return false;