[patch] Add discriminator support to readelf/objdump

[Cary Coutant]

>> include/elf/
>>
>>         * dwarf2.h (DW_LNE_set_discriminator): New enum value.
>>
>> binutils/
>>
>>        * dwarf.c (process_extended_line_op): Add DW_LNE_set_discriminator.
>>        Add missing newlines to HP extensions.
>
> Approved - please apply.

Thanks! Committed.

-cary