[ESS] ESS tracebug watch always empty

[Vitalie Spinu]

Thanks Ross, Something went wrong recently with watch. I will look into
it asap.

 >>> Ross Boylan on Thu, 30 Jan 2014 10:59:42 -0800 wrote:

 > In brief, I am unable to add expressions to the watch window.

 > While tracing through a function after a breakpoint from tracebug I did C-c C-T
 > w, which caused a watch window to pop up.  I think I was in the *R* window when
 > I gave the command, and since I had typed on the command line in that window the
 > message about using M-N etc to step was not visible.

 > The watch window opened with instruction to use, for example, a to append to
 > expressions to watch.  I typed a and was prompted for an expression.  I entered
 > the name of a field in the reference class I was debugging.  After I hit enter
 > the watch window was unchanged.  I tried with some other variables and, I think,
 > a function, but nothing ever got added to the window.

 > Hitting q in the watch window closed it.

 > Should I be doing something differently?  Is this a bug?  This is the first time
 > I tried to use the watch window.

 > I'm running  13.09-1 [git: 136742f6507eb946f8ff5351fa46541d0f5b82da] (from
 > development awhile ago) with emacs 23.2.1 and R 3.0.1

 > Thanks.
 > Ross Boylan

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