re PR libstdc++/47433 (libstdc++ parallel mode calls std::swap explicitely)

2011-02-11  Johannes Singler  <singler@kit.edu>

        PR libstdc++/47433
        * include/parallel/losertree.h
        (_LoserTreeUnguarded<>::__delete_min_insert):
        Add missing "using std::swap;", as for other variants.

From-SVN: r170047