Bad news: the problem is not gone. Fail at commit 180372c08a25332429f6175d6aa036c1ec643ca3 (the commit after Zach's commit be1faabeef0821f188a28dd7cc6b744b89e85e94 in the Python 2.7 branch):

http://buildbot.python.org/all/#/builders/70/builds/28

test_use (test_tkinter.test_widgets.ToplevelTest) ... ERROR
test_visual (test_tkinter.test_widgets.ToplevelTest) ... ok
test test_tk failed -- Traceback (most recent call last):
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\test\test_tkinter\test_widgets.py", line 93, in test_use
    widget2 = self.create(use=wid)
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\test\test_tkinter\test_widgets.py", line 67, in create
    return tkinter.Toplevel(self.root, **kwargs)
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\Tkinter.py", line 2138, in __init__
    BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra)
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\Tkinter.py", line 2095, in __init__
    (widgetName, self._w) + extra + self._options(cnf))
TclError: integer value too large to represent
test_width (test_tkinter.test_widgets.ToplevelTest) ... ok
======================================================================
ERROR: test_use (test_tkinter.test_widgets.ToplevelTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\test\test_tkinter\test_widgets.py", line 93, in test_use
    widget2 = self.create(use=wid)
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\test\test_tkinter\test_widgets.py", line 67, in create
    return tkinter.Toplevel(self.root, **kwargs)
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\Tkinter.py", line 2138, in __init__
    BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra)
  File "D:\buildarea\2.7.ware-win81-release\build\lib\lib-tk\Tkinter.py", line 2095, in __init__
    (widgetName, self._w) + extra + self._options(cnf))
TclError: integer value too large to represent