Blocked revisions 82039 via svnmerge

Blocked revisions 82039 via svnmerge

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  r82039 | r.david.murray | 2010-06-16 21:36:52 -0400 (Wed, 16 Jun 2010) | 10 lines

  #8720: fix inspect regression by teaching getsourcefile about linecache.

  The fix for issue 4050 caused a regression:  before that fix, source
  lines in the linecache would eventually be found by inspect.  After the
  fix inspect reports an error earlier, and the source isn't found.
  The fix for the fix is to have getsourcefile look in the linecache for
  the file and return the psuedo-filename if the source is there, just as
  it already returns it if there is a PEP 302 loader.
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