This also alters the fix to #11603. Specifically, setting __repr__ to
object.__str__ now raises a recursion RuntimeError when str() or repr() is
called instead of silently bypassing the recursion. I believe this behavior is
more correct.

Skip long repr tests when the cached pyc file's path length would exceed the maximum Win32 path length.
This should fix a failure on one of the XP buildbots.

Patch by Dionysios Kalofonos.

Patch by Dionysios Kalofonos.

Original patch by Peter Otten.

Original patch by Peter Otten.

Patch from Mark Shannon.