These are already done.

TODO

@@ -5,10 +5,4 @@ Below list contains things that should be changed/fixed/implemented.
 1. int[] $arr = {5, 5};
 	This syntax is unsupported yet. Should replace the array() function.
 
-2. Class properties do not support strict data type hinting.
+2. Some builtin functions like isset() seems to be useless, if varaible is not defined, interpreter will throw an error.
-
-3. Methods declaration / definition still uses function keyword.
-
-4. Some builtin functions like isset() seems to be useless, if varaible is not defined, interpreter will throw an error.
-
-5. Interpreter should verify that Program::main() returns a value of int or void data type.