2010-04-24  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/bits/unique_ptr (unique_ptr::pointer): Use deleter's
	pointer type if it exists.
	* testsuite/20_util/unique_ptr/requirements/pointer_type.cc: New.
	* testsuite/20_util/unique_ptr/assign/assign_neg.cc: Adjust.
	* testsuite/20_util/unique_ptr/modifiers/reset_neg.cc: Adjust.

From-SVN: r158682