pa-protos.h (pa_output_arg_descriptor): Strengthen argument from rtx to rtx_insn *.

	* config/pa/pa-protos.h (pa_output_arg_descriptor): Strengthen
	argument from rtx to rtx_insn *.
	(compute_movmem_length, compute_clrmem_length): Likewise.
	(copy_fp_args, length_fp_args): Likewise.
	* config/pa/pa.c (legitimize_pic_address): Promote local variable
	"insn" from rtx to rtx_insn *.
	(legitimize_tls_address, pa_emit_move_sequence): Likewise.
	(pa_output_block_move, store_reg, store_reg_modify): Likewise.
	(set_reg_plus_d, pa_expand_prologue, hppa_profile_hook): Likewise.
	(branch_to_delay_slot_p, branch_needs_nop_p, use_skip_p): Likewise.
	(pa_output_arg_descriptor): Strengthen argument to an rtx_insn *.
	(compute_movmem_length, compute_clrmem_length): Likewise.
	(copy_fp-args, length_fp_args): Likewise.

From-SVN: r216859