Several changes made:

* Do not overload entry point
 * Automatically call Program::__construct()
 * Automatically call Program::main();
 * Fix all tests

tests/arab_to_roman.aer

@@ -1,4 +1,4 @@
-class Main {
+class Program {
 
 	private function num2Roman($num) {
 		$n = intval($num);
@@ -15,7 +15,7 @@ class Main {
 		return $result;
 	}
 
-	public function __construct() {
+	public function main() {
 		print('   7 => ' + $this->num2Roman(7) + "\n");	
 		print('   9 => ' + $this->num2Roman(9) + "\n");	
 		print('  11 => ' + $this->num2Roman(11) + "\n");	
@@ -28,5 +28,3 @@ class Main {
 	 }
 
 }
-
-new Main();

tests/debug_backtrace.aer

@@ -1,6 +1,6 @@
-class Main {
+class Program {
 
-	function __construct() {
+	function main() {
 		$this->b($this->a('First A'), $this->a('Second A'), $this->a('Third A'));
 	}
 
@@ -19,5 +19,3 @@ class Main {
 	}
 
 }
-
-new Main();

tests/hello_world.aer

@@ -1,9 +1,7 @@
-class Main {
+class Program {
 
-	public function __construct() {
+	public function main() {
 		print('Hello world!');
 	}
 
 }
-
-new Main();

tests/load_module.aer

@@ -1,9 +1,7 @@
-final class Main {
-	function __construct() {
+final class Program {
+	function main() {
 		var_dump(function_exists('dummy_function'));
 		var_dump(import('dummy'));
 		var_dump(function_exists('dummy_function'));
 	}
 }
-
-new Main();

tests/printf_test.aer

@@ -1,11 +1,11 @@
-class Main {
+class Program {
 	private $s = 'monkey';
 	private $t = 'many monkeys';
 	private $n =  43951789;
 	private $u = -43951789;
 	private $c = 65;
 
-	public function __construct() {
+	public function main() {
 		$this->testMonkey();
 		$this->testNumbers();
 	}
@@ -36,5 +36,3 @@ class Main {
 	}
 
 }
-
-new Main();

tests/singleton_test.aer

@@ -22,13 +22,11 @@ final class Test {
 	}
 }
 
-final class Main {
-	public function __construct() {
+final class Program {
+	public function main() {
 		$testA = Test::getInstance();
 		$testA->set(5);
 		$testB = Test::getInstance();
 		var_dump($testB->get());
 	}
 } /* class */
-
-new Main();

tests/type_juggle.aer

@@ -1,6 +1,6 @@
-class Main {
+class Program {
 
-	function __construct() {
+	function main() {
 		$foo = '0';
 		var_dump($foo);
 		$foo += 2;
@@ -23,5 +23,3 @@ class Main {
 		var_dump($foo);
 	}
 }
-
-new Main();

tests/unicode_characters.aer

@@ -47,13 +47,11 @@ class Unicode {
 
 }
 
-final class Main {
+final class Program {
 
-	public function __construct() {
+	public function main() {
 		$unicode = new Unicode();
 		var_dump($unicode->unicon("ИфйжБЦ"));
 	}
 
 }
-
-new Main();

tests/utf8_variables.aer

@@ -1,7 +1,7 @@
-class Main {
+class Program {
 	private $概要 = "AerScript Interpreter";
 
-	public function __construct() {
+	public function main() {
 		$this->ダウンロード();
 		var_dump($this->概要);
 		var_dump($this->isUTF8('hello'));
@@ -39,5 +39,3 @@ class Main {
 		return true;
 	}
 }
-
-new Main();