Experimental lexer generator: make tests pass again + style fixes.

tools/lexer_generator/code_generator_test.py

 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import unittest
 from code_generator import CodeGenerator
 from rule_parser import RuleProcessor
 
 class CodeGeneratorTestCase(unittest.TestCase):
 
   def test_simple(self):
     rules = '''
+    eos = [:eos:];
     <<default>>
     "("           <|{LBRACE}|>
     ")"           <|{RBRACE}|>
 
     "foo"         <|{FOO}|>
-    eof           <|terminate|>
+    eos           <|terminate|>
     default_action <{DEFAULT}>'''
     CodeGenerator(RuleProcessor.parse(rules))