* include/bits/unique_ptr.h (make_unique): Define.
	* testsuite/20_util/unique_ptr/creation/single.cc: New.
	* testsuite/20_util/unique_ptr/creation/array.cc: New.
	* testsuite/20_util/unique_ptr/creation/array_neg.cc: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@199057 138bc75d-0d04-0410-961f-82ee72b054a4