[RFA]: Document TUI status line

[Eli Zaretskii]

On Sun, 1 Sep 2002, Stephane Carrez wrote:

> This patch documents the TUI status line fields.  I've used @emph for table
> because the items are not printed as is.  Checked on pdf.
> 
> Is it ok to commit?

Yes, with these two minor comments:

 - After this sentence:

   The name is demangled if demangling is turned on.

   I suggest a cross reference to the place where the manual describes 
   how to control demangling.

 - I suggest to say "program counter" instead of "PC", in case the reader 
   is not fluent with the GDB parlance.

Thanks!