Message2230

This patch adds some Python 2.2 features, just enough 
to meet the first few test cases from test_descr.py, 
which contains the test cases for the Type/Class 
Unification of Python2.2. test_descr.py is included 
as Lib/test/test_descr_lists.py (test cases not 
implemented commented out).

With this patch you can
- compare builtin methods (more correctly, I hope), 
e.g.
>>> a=[1]
>>> b=[2]
>>> type(a).append == type(b).append
1             # was 0

- call methods with no implicit parameter, i.e.
>>> import types
>>> a=[1]
>>> m=types.ListType.append   # m=list.append not yet 
possible
>>> m(a,2)
# was "TypeError: append(): expected 1 args; got 2" 
before
>>> a
[1, 2]

- do some more things with lists

See test_descr_lists.py for details on what can be 
done now.

Apart from test_descr_lists I tested with bugtests. 
By applying the patch I had the same twelve tests 
failing than before. Hmmm.

If the direction is right I can spend some more time 
on implementing more of the tests for the Type/Class 
Unification.