PR libstdc++/71545
	* include/bits/stl_algobase.h (lower_bound, lexicographical_compare):
	Remove irreflexive checks.
	* include/bits/stl_algo.h (lower_bound, upper_bound, equal_range,
	binary_search): Likewise.
	* testsuite/25_algorithms/equal_range/partitioned.cc: New test.
	* testsuite/25_algorithms/lexicographical_compare/71545.cc: New test.
	* testsuite/25_algorithms/lower_bound/partitioned.cc: New test.
	* testsuite/25_algorithms/upper_bound/partitioned.cc: New test.
	* testsuite/util/testsuite_iterators.h (__gnu_test::test_container):
	Add constructor from array.

From-SVN: r237560