gas/

gas/
	* dwarf2dbg.c (out_sleb128): Delete.
	(size_fixed_inc_line_addr, emit_fixed_inc_line_addr): New.
	(out_fixed_inc_line_addr): Delete.
	(relax_inc_line_addr, dwarf2dbg_estimate_size_before_relax): Call new
	size_fixed_inc_line_addr if DWARF2_USE_FIXED_ADVANCE_PC is set.
	(dwarf2dbg_convert_frag): Likewise for emit_fixed_inc_line_addr.
	(process_entries): Remove calls to out_fixed_inc_line_addr.  When
	DWARF2_USE_FIXED_ADVANCE_PC is set, call relax_inc_line_addr.
	* read.h (emit_expr_fix): New prototype.
	* read.c (emit_expr): Move code to emit_expr_fix and use it here.
	(emit_expr_fix): New.
testsuite/
	* gas/lns/lns.exp: Run new lns-big-delta test for targets that set
	DWARF2_USE_FIXED_ADVANCE_PC.
	* gas/lns/lns-big-delta.s: New.
	* gas/lns/lns-big-delta.d: New.