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2009-02-10 Josh Stone <jistone@redhat.com>
+ * staptree.h (update_visitor::require): Add a clearok parameter for
+ optimizing traversers to signal that they're ready for NULL back.
* elaborate.cxx (dead_assignment_remover): Convert into an
update_visitor and remove its now-redundant traversal methods.
+ * elaborate.cxx (dead_stmtexpr_remover): Convert to an update_visitor.
2009-02-05 Josh Stone <jistone@redhat.com>