PR libstdc++/24803

	PR libstdc++/24803
	PR libstdc++/37351
	* 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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141596 138bc75d-0d04-0410-961f-82ee72b054a4