Add import_function method to test.test_support, and modify a number of
tests that expect to be skipped if imports fail or functions don't
exist to use import_function and import_module.  The ultimate goal is
to change regrtest to not skip automatically on ImportError.  Checking
in now to make sure the buldbots don't show any errors on platforms
I can't direct test on.
diff --git a/Lib/test/test_scriptpackages.py b/Lib/test/test_scriptpackages.py
index ee14be2..a3a1857 100644
--- a/Lib/test/test_scriptpackages.py
+++ b/Lib/test/test_scriptpackages.py
@@ -2,7 +2,8 @@
 
 import unittest
 from test import test_support
-import aetools
+
+aetools = test_support.import_module('aetools')
 
 class TestScriptpackages(unittest.TestCase):