Candidate fix for arm-coff testsuite failures

[Nick Clifton]

Hi Zack,

> gas:
>         * config/tc-arm.c (find_real_start): Check S_IS_LOCAL on
>         symbolP as well as for names with a leading dot.  Use ACONCAT.
>         (md_apply_fix): For branch relocations, only replace value
>         with fixP->fx_offset (under #ifdef OBJ_ELF) when !fixP->fx_done.
>         (arm_force_relocation): Remove #ifdef OBJ_ELF case.
>         * config/tc-arm.h (LOCAL_LABEL): Remove unnecessary parentheses.
>         (LOCAL_LABEL_PREFIX): Don't define.
> 
> gas/testsuite:
>         * gas/arm/thumb.s: Only branch to labels defined in this file.
>         * gas/arm/thumb.d, gas/arm/thumb32.d: Adjust expected output.

Approved - please apply.

Cheers
   Nick