properly handle extensions to DWARF 2 line number information

[Nick Clifton]

Hi Geoff,

> Index: bfd/ChangeLog
> 2001-11-11  Geoffrey Keating  <geoffk@redhat.com>
> 
> 	* dwarf2.c (decode_line_info): Properly deal with unknown standard
> 	opcodes.
> 
> Index: binutils/ChangeLog
> 2001-11-11  Geoffrey Keating  <geoffk@redhat.com>
> 
> 	* readelf.c (display_debug_lines): Deal with unknown standard
> 	opcodes.  Handle DW_LNS_set_prologue_end, DW_LNS_set_epilogue_begin,
> 	DW_LNS_set_isa.
> 
> Index: include/elf/ChangeLog
> 2001-11-11  Geoffrey Keating  <geoffk@redhat.com>
> 
> 	* dwarf2.h (dwarf_line_number_ops): Add DWARF 3 opcodes.


Approved - please apply.

Cheers
        Nick