* dwarf2dbg.c (dwarf2_consume_line_info): New.

	* dwarf2dbg.c (dwarf2_consume_line_info): New.
	(dwarf2_emit_insn): Use it here.
	(dwarf2_directive_loc): Fix check for consecutive .loc directives
	when debug_type is DEBUG_DWARF2.
	* dwarf2dbg.h (dwarf2_consume_line_info): New prototype.
	* config/tc-ia64.c (ia64_flush_insns): Call dwarf2_consume_line_info.
	(md_assemble): Likewise.
testsuite/
	* gas/lns/lns.exp: Run lns-common-1 with alternate source for ia64.
	* gas/lns/lns-common-1-ia64.s: New file.