2009-10-29  Paolo Carlini  <paolo.carlini@oracle.com>
  	    Douglas Gregor  <doug.gregor@gmail.com>

	PR libstdc++/40925 (again)
	* include/bits/stl_pair.h (pair<_T1, _T2>::pair(_U1&&, const _T2&),
	pair<_T1, _T2>::pair(const _T1&, _U2&&)): Add, to deal correctly
	with move-only types in the presence of "null pointers".
	* testsuite/20_util/pair/40925.cc: Extend.

Co-Authored-By: Douglas Gregor <doug.gregor@gmail.com>

From-SVN: r153733