[IronPython] Named Tuple and IronPython 2

[Douglas S. Blank]

Dino Viehland wrote:
> Not too long ago I prototyped a frames implementation including
> making _getframe work - but it doesn't include locals in the frames.
> I guess in this case it would work just fine.
> 
> The downside is it results in a 50% perf degrade on Pybench when
> calling recursive functions.   But we're already really fast calling
> functions so maybe that's acceptable.  Anyway it's something we can
> consider for a post-2.0 release (maybe w/ a command line option to
> control its presence) but I came up with the prototype too late to go
> adding it to 2.0.

add prototype frames: +1
by default, or with command-line option: +1

Thanks!

-Doug