The "test_contextlib" is now working perfectly due to the generator functions
having a correct throw(). Added that test back, so context managers are
now fully covered.
Added a basic test for "overflow functions" has been added, these are the ones
which have an unknown number of locals due to the use of language constructs
exec or from bla import * on the function level. This one currently
only highlights the failure to support it.
Reverted removals of extended slice syntax from some parts of the CPython test
The compiled generator types are using the new C++0x type safe enums feature.
Resolved a circular dependency between TreeBuilding and