List valid pairs for new and delete operators.

List valid pairs for new and delete operators.

	PR c++/94314
	* cgraphclones.c (set_new_clone_decl_and_node_flags): Drop
	DECL_IS_REPLACEABLE_OPERATOR during cloning.
	* tree-ssa-dce.c (valid_new_delete_pair_p): New function.
	(propagate_necessity): Check operator names.

	PR c++/94314
	* g++.dg/pr94314.C: Do not use dg-additional-options
	and remove not needed stdio.h include.
	* g++.dg/pr94314-2.C: Likewise.
	* g++.dg/pr94314-3.C: Likewise.
	* g++.dg/pr94314-4.C: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>