Bug in your Aug 24 change

[Mark Mitchell]

>>>>> "Mark" == Mark Mitchell <mark@codesourcery.com> writes:

    Mark> I'm testing this change, which does fix the problem.
    Mark> Comments?

That's wasn't very clear.  I'm sorry.

The bug is that unrolling duplicates BLOCK_BEGIN/BLOCK_END notes, so
it also needs to duplicate BLOCKs.

--
Mark Mitchell                   mark@codesourcery.com
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