Experimental parser: KeyEncoding class added

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 23 matching lines @@
   def test_simple(self):
     rules = '''
     eos = [:eos:];
     <<default>>
     "("           <|{LBRACE}|>
     ")"           <|{RBRACE}|>
 
     "foo"         <|{FOO}|>
     eos           <|terminate|>
     default_action <{DEFAULT}>'''
-    CodeGenerator(RuleProcessor.parse(rules))
+    CodeGenerator(RuleProcessor.parse(rules, 'latin1'))