* dwarf2dbg.c: Remove superfluous forward function declarations.

	* dwarf2dbg.c: Remove superfluous forward function declarations.
	(DWARF2_FORMAT): Add section arg.
	(out_header): New function, split out from..
	(out_debug_line): ..here.
	(out_debug_aranges): Use out_header.
	(out_debug_abbrev): Add info_seg and line_seg args.  Use
	DW_FORM_data8 (for DW_AT_stmt_list) if line_seg is 64-bit.
	(out_debug_info): Use out_header.  Output 8 byte DW_AT_stmt_list
	if line_seg is 64-bit.
	(dwarf2_finish): Adjust out_debug_abbrev call.
	* config/tc-mips.h (DWARF2_FORMAT, mips_dwarf2_format): Add sec arg.
	* config/tc-mips.c (mips_dwarf2_format): Likewise.