Blocked revisions 76971 via svnmerge

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  r76971 | mark.dickinson | 2009-12-21 12:37:06 +0000 (Mon, 21 Dec 2009) | 4 lines

  Keep PyLong_AsLongAndOverflow documentation and implementation in sync
  between py3k and trunk;  merge new tests from trunk to py3k.
  (See issue #7528.)
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