frv-protos.h: Add a prototype to frv_legitimate_memory_operand and frv_const_unspec_p.

	* config/frv/frv-protos.h: Add a prototype to
	frv_legitimate_memory_operand and frv_const_unspec_p.
	(frv_unspec): Move from frv.c.
	* config/frv/frv.c (frv_unspec): Move to frv-protos.h.
	(frv_const_unspec_p, frv_legitimate_memory_operand_): Export.
	(ldd_address_operand, fdpic_fptr_operand, frv_load_operand,
	gpr_or_fpr_operand, gpr_or_int12_operand,
	gpr_fpr_or_int12_operand, fpr_or_int6_operand,
	gpr_or_int10_operand, gpr_or_int_operand, int12_operand,
	int6_operand, int5_operand, uint5_operand, uint4_operand,
	uint1_operand, int_2word_operand, uint16_operand,
	upper_int16_operand, integer_register_operand,
	gpr_no_subreg_operand, fpr_operand, even_reg_operand,
	odd_reg_operand, even_gpr_operand, odd_gpr_operand,
	quad_fpr_operand, even_fpr_operand, odd_fpr_operand,
	dbl_memory_one_insn_operand, dbl_memory_two_insn_operand,
	move_destination_operand, movcc_fp_destination_operand,
	frv_function_symbol_referenced_p, move_source_operand,
	condexec_dest_operand, condexec_source_operand,
	reg_or_0_operand, lr_operand, fdpic_operand, got12_operand,
	const_unspec_operand, gpr_or_memory_operand,
	gpr_or_memory_operand_with_scratch, fpr_or_memory_operand,
	icc_operand, fcc_operand, cc_operand, icr_operand,
	fcr_operand, cr_operand, call_operand, sibcall_operand,
	symbolic_operand, relational_operator,
	integer_relational_operator, float_relational_operator,
	ccr_eqne_operator, minmax_operator,
	condexec_si_binary_operator, condexec_si_media_operator,
	condexec_si_divide_operator, condexec_si_unary_operator,
	condexec_sf_conv_operator, condexec_sf_add_operator,
	condexec_memory_operand, intop_compare_operator, acc_operand,
	even_acc_operand, quad_acc_operand, accg_operand: Move to
	predicates.md.
	* config/frv/frv.h (PREDICATE_CODES): Remove.
	* config/frv/frv.md: Include predicates.md.
	* config/frv/predicates.md: New.

From-SVN: r97577