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PR libstdc++/38017 Revert: * include/tr1_impl/functional (result_of,reference_wrapper): Update to use C++0x features. * testsuite/20_util/function_objects/return_types/result_of.cc: New. * testsuite/20_util/function_objects/return_types/result_of_neg.cc: New. * testsuite/20_util/function_objects/return_types/result_of_ref.cc: New. * testsuite/20_util/reference_wrapper/24803.cc: Uncomment FIXMEs. From-SVN: r141602