PR67085 move comparison functions in heap operations

PR67085 move comparison functions in heap operations

	PR libstdc++/67085
	* include/bits/stl_heap.h (push_heap, __adjust_heap, __pop_heap)
	(pop_heap, __make_heap, make_heap, __sort_heap, sort_heap): Use
	_GLIBCXX_MOVE when passing comparison function to other functions.
	(is_heap_until, is_heap): Use std::move when passing comparison
	function.
	* testsuite/23_containers/priority_queue/67085.cc: New test.

From-SVN: r244648