[issue4264] Patch: optimize code to use LIST_APPEND instead of calling list.append

[David Turner]

David Turner <novalis at novalis.org> added the comment:

Actually, I just noticed a case where the code would do the wrong thing.
 I fixed it and added a test for it.

Added file: http://bugs.python.org/file11958/tlee-ast-optimize-appends-3.diff

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