RFC: Supporting quoted symbol/label names

[Nick Clifton]

Hi Guys,

>    I have been looking at PR 18581, which complains about the ARM
>    assembler not accepting function names containing a dash:
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=18581

OK, I have gone ahead and applied my patch.  I have not extended it 
(yet) to handle escape sequences inside quoted strings, although that 
may come in the future.

Cheers
   Nick