added a semi realworld benchmark (jinja2 and mako)

--HG--
branch : trunk
diff --git a/jinja2/environment.py b/jinja2/environment.py
index d1206ef..f64b150 100644
--- a/jinja2/environment.py
+++ b/jinja2/environment.py
@@ -609,7 +609,7 @@
         if self.__name__ is None:
             name = 'memory:%x' % id(self)
         else:
-            name = repr(self.name)
+            name = repr(self.__name__)
         return '<%s %s>' % (self.__class__.__name__, name)