temporary identifiers are prefixed with "t_" now and the _node_setup_finished hack went away

--HG--
branch : trunk
diff --git a/jinja2/lexer.py b/jinja2/lexer.py
index 2719dcc..61e1bca 100644
--- a/jinja2/lexer.py
+++ b/jinja2/lexer.py
@@ -92,10 +92,7 @@
         return tuple.__new__(cls, (lineno, intern(str(type)), value))
 
     def __str__(self):
-        from jinja.lexer import keywords, reverse_operators
-        if self.type in keywords:
-            return self.type
-        elif self.type in reverse_operators:
+        if self.type in reverse_operators:
             return reverse_operators[self.type]
         elif self.type is 'name':
             return self.value