* doc/extend.texi: Deprecate C++ min/max operators.

	* parser.c (cp_parser_warn_min_max): New function.
	(cp_parser_binary_expression): Use it.
	(cp_parser_assignment_operator_opt): Likewise.
	(cp_parser_operator): Likewise.

	* g++.dg/opt/max1.C: Run with -Wno-deprecated.
	* g++.dg/opt/pr7503-2.C: Likewise.
	* g++.dg/opt/pr7503-3.C: Likewise.
	* g++.dg/opt/pr7503-4.C: Likewise.
	* g++.dg/opt/pr7503-5.C: Likewise.
	* g++.dg/warn/minmax.C: New test.

From-SVN: r96899