Now uses NULL instead of INVALID_HANDLE_VALUE as invalid map handle
because CreateFileMapping returns NULL when error occurs.

This is needed because the system linker looks in /Library/Framework before
it looks in /System/Library frameworks. Without this patch _tkinter will
be unusable when it is compiled on a system that has Tk 8.5 installed in
/Library/Frameworks (and the Apple 8.4 install in /System/Library/Frameworks)

Do a more exact copy of the final 3.x code to resolve bugs and add
appropriate tests.

Adds tests, switches from list to deque, fixes __reduce__
which was unnecessarily copying __keys.

consistent with the other re module functions.

thus invisible in the compiled documentation.  Fixed.  Also I cleaned up the
wording.

POP_JUMP_IF_{TRUE,FALSE} and JUMP_IF_{TRUE,FALSE}_OR_POP. This avoids executing
a POP_TOP on each conditional and sometimes allows the peephole optimizer to
skip a JUMP_ABSOLUTE entirely. It speeds up list comprehensions significantly.

with same tagname but larger size than first map. (Windows)

overrun.

#5363: fix cmpfiles() docs. Another instance where a prose description is twice as long as the code.