ghci debugger :trace command does not always extend trace history

[Peter Hercek]

Simon Marlow wrote:
> I agree with most of what you say - there should be a way to get access 
> to the history after :trace has finished.  Perhaps the right way is just 
> to have a single global trace history.
> 
> Please submit a feature request, with a proposal for the user interface, 
> to the GHC bug tracker:
> 
> http://hackage.haskell.org/trac/ghc/newticket?type=feature+request

Trace history should not be context/resume specific but global:
http://hackage.haskell.org/trac/ghc/ticket/2945

Tracing should be controlled by a global flag (it should not be resume 
context specific):
http://hackage.haskell.org/trac/ghc/ticket/2946

If anybody cares about ghci user interface then he/she should comment on 
the two tickets since they propose ghci UI changes. I doubt there would 
be complains about the first ticket but the second one may be more 
controversial.

Thanks,
Peter.