==========
Empty File
==========

---

(source_file)

==================
End with semicolon
==================

a = b;

---

(source_file
  (assignment (identifier) (identifier)))

=====================
End without semicolon
=====================

a = b

---

(source_file
  (assignment (identifier) (identifier)))

==============
Block comments
==============

/*
 * Block comments
 */

/* Comment with asterisks **/

----

(source_file
  (block_comment)
  (block_comment))

=============
Line comments
=============

% Comment

----

(source_file
  (line_comment))