*ReflectionKey functions used to not be documented or tested, but they are
now sufficiently documented and tested on platforms where they apply.
Additionally, fixed a bug in QueryReflectionKey which was returning an
incorrect value.

All tests pass from XP through Windows 7, on 32 and 64-bit platforms.

removed the local copy of xxmodule, and skip only test_build_ext when xxmodule is not found, not the whole unittest

Issue 7994: Make object.__format__ with a non-empty format string a PendingDecprecationWarning. Still need to remove uses of this from various tests.

a socket option available on FreeBSD 7.1 and newer.

* PyCObject_AsVoidPtr() can now open capsules.  This addresses
  most of the remaining backwards-compatibility concerns about
  the conversion of Python 2.7 from CObjects to capsules.
* CObjects were marked Pending Deprecation.
* Documentation about this pending deprecation was added to
  cobject.h.
* The capsule source files were added to the legacy PC build
  processes.

Also rewrite the Decimal __hash__ method so that it doesn't rely on
float('inf') being valid: float('inf') could raise an exception on
platforms not using IEEE 754 arithmetic.

Float to decimal comparison operations now return a result based on
the numeric values of the operands.  Decimal.__hash__ has also been
fixed so that Decimal and float values that compare equal have equal
hash value.

as a regular test by regrtest.py, and fails.

function declaration, which was kept for backwards compatibility reasons,
is now removed (the macro was introduced in 1997!).

allowing to use advanced gdb features when debugging Python.

check_warnings docs to be clearer.

Replace catch_warnings with check_warnings when it makes sense.  Use assertRaises context manager to simplify some tests.