unique_ptr.h (make_unique): Declare inline.

unique_ptr.h (make_unique): Declare inline.

	* include/bits/unique_ptr.h (make_unique): Declare inline.
	(unique_ptr<T[],D>::reset()): Combine two overloads into one.
	(default_delete, unique_ptr): Add doxygen comments.
	* include/bits/shared_ptr_base.h: Improve doxygen comments.
	* include/bits/shared_ptr.h: Likewise.
	* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line
	number.
	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Likewise.

From-SVN: r199069