Blocked revisions 77237 via svnmerge

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  r77237 | mark.dickinson | 2010-01-02 15:33:56 +0000 (Sat, 02 Jan 2010) | 14 lines

  Merged revisions 77234 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r77234 | mark.dickinson | 2010-01-02 14:45:40 +0000 (Sat, 02 Jan 2010) | 7 lines

    Refactor some longobject internals:  PyLong_AsDouble and _PyLong_AsScaledDouble
    (the latter renamed to _PyLong_Frexp) now use the same core code.  The
    exponent produced by _PyLong_Frexp now has type Py_ssize_t instead of the
    previously used int, and no longer needs scaling by PyLong_SHIFT.  This
    frees the math module from having to know anything about the PyLong
    implementation.  This closes issue #5576.
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