Merged revisions 75943-75945 via svnmerge from

Merged revisions 75943-75945 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75943 | mark.dickinson | 2009-10-29 11:09:09 +0000 (Thu, 29 Oct 2009) | 1 line

  Fix duplicate test numbers in extra.decTest
........
  r75944 | mark.dickinson | 2009-10-29 12:04:00 +0000 (Thu, 29 Oct 2009) | 3 lines

  Issue #7233:  A number of two-argument Decimal methods were failing to
  accept ints and longs for the second argument.
........
  r75945 | mark.dickinson | 2009-10-29 12:11:18 +0000 (Thu, 29 Oct 2009) | 4 lines

  Issue #7233:  Fix Decimal.shift and Decimal.rotate methods for
  arguments with more digits than the current context precision.
  Bug reported by Stefan Krah.
........