fix Xtensa assembler line numbers

[Bob Wilson]

On Oct 18, 2005, at 12:42 AM, Nick Clifton wrote:
> What affect, if any, does this patch have on the Xtensa GAS  
> testsuite results ?

The patch should not have affected any line numbers -- the problems  
with the code were all related to the new flags that can be set  
with .loc.  It looks like there is one test for those flags.  In one  
of the .loc patches, rth made a comment about the Xtensa results  
being "not ideal" but not incorrect.  I don't remember seeing any  
test failures before I made this patch, but in any case, all the  
tests pass now.

--Bob