One bug fixed, another found.

TODO

@@ -6,4 +6,5 @@ Below list contains things that should be changed/fixed/implemented.
 
 2. Some builtin functions like isset() seems to be useless, if variable is not defined, interpreter will throw an error.
 
-3. It is impossible to assign {1, 2, 3} to float[], because in fact we are trying to assign int[] to float[].
+3. Array get a type of mixed, if there are at least 2 different types of value specified, even they are compatible, eg.
+	{4, 5.5} will result in mixed instead of float.