Test cases

- Updated `simple_comments.t`

source/tlang/testing/simple_comments.t

@@ -10,12 +10,13 @@ int p;
  */
 
 /**
- * Takes two inputs, does nothing with
+ *    Takes two inputs, does nothing with
   them and then returns 0 nonetheless
  *
  * @param   x  This is the first input
  *@param y This is the second    input
  * @param niks   this  r e a l l y doesn't do anything
+ * @throws ZeroException if the values passed in are not zero
  * @return Just the value 0
  */
 int zero(int x, int y)