Added some new tests and two new files for testing: test_types.py
(testing operations on built-in types) and autotest.py (automatic
regression testing).
diff --git a/Lib/test/testall.py b/Lib/test/testall.py
index 5f17be1..92e7b9f 100644
--- a/Lib/test/testall.py
+++ b/Lib/test/testall.py
@@ -25,4 +25,8 @@
 unload('test_exceptions')
 import test_exceptions
 
+print 'test_types'
+unload('test_types')
+import test_types
+
 print 'Passed all tests.'