Cfront support --> obsolete it

[Andrew Cagney]

> I have been looking at obsoleting the cfront support that was added in
> 1996 to gdb.
> 
> The code spans the following files:
> 
> buildsym.c
> dbxread.c
> gdbtypes.c
> mdebugread.c
> stabsread.c
> xcoffread.c
> 
> stabsread.h
> 
> I am preparing a patch to obsolete the code.
> It will be pulled after the next version of gdb goes out, as usual.
> 
> Does this impact anybody? I woudln't think so, since part of that
> code, I discovered, was already ifdef'ed out...

When you say `already ifdef'ed out...', how ifdef'd out?  Was it 
disabled to the point where it couldn't work?  If it was (and there has 
been an intervening GDB release) then I think the code can simply go.

Andrew