Add operand_check_p to range-ops.

Add operand_check_p to range-ops.

Add an optional method to verify operands are compatible, and check
the operands before all range operations.

	* range-op-mixed.h (operator_equal::operand_check_p): New.
	(operator_not_equal::operand_check_p): New.
	(operator_lt::operand_check_p): New.
	(operator_le::operand_check_p): New.
	(operator_gt::operand_check_p): New.
	(operator_ge::operand_check_p): New.
	(operator_plus::operand_check_p): New.
	(operator_abs::operand_check_p): New.
	(operator_minus::operand_check_p): New.
	(operator_negate::operand_check_p): New.
	(operator_mult::operand_check_p): New.
	(operator_bitwise_not::operand_check_p): New.
	(operator_bitwise_xor::operand_check_p): New.
	(operator_bitwise_and::operand_check_p): New.
	(operator_bitwise_or::operand_check_p): New.
	(operator_min::operand_check_p): New.
	(operator_max::operand_check_p): New.
	* range-op.cc (range_op_handler::fold_range): Check operand
	parameter types.
	(range_op_handler::op1_range): Ditto.
	(range_op_handler::op2_range): Ditto.
	(range_op_handler::operand_check_p): New.
	(range_operator::operand_check_p): New.
	(operator_lshift::operand_check_p): New.
	(operator_rshift::operand_check_p): New.
	(operator_logical_and::operand_check_p): New.
	(operator_logical_or::operand_check_p): New.
	(operator_logical_not::operand_check_p): New.
	* range-op.h (range_operator::operand_check_p): New.
	(range_op_handler::operand_check_p): New.