D sandbox?

[davidl]

currently DParser passes some dstress test cases. I'm in the mood of  
glueing
it with DMD backend.

With current C++ interface improvements in D, I think DParser is possible  
to glue with DMD backend. I hope Walter can provide an interface , and a  
backend library. Though it's a great bunches of work :D

It's still possible to glue with LLVM and take advantage from the work  
done by lindquist. But a general backend interface not only glueing with  
one backend is better for me in some sense.

1. This benefits several scripting langs. Those lang can take advantage  
 from DMD backend to generate native code.

2. The work on DParser can therefore attract more people to help. And thus  
more bug fixes can be done. DMD C++ frontend might get some patches from  
those bug fixes.

3. DParser itself can create branches as sandboxes to give the community  
some experiments and coding in D is relatively easier than C++ in the  
original DMD frontend for the community. So community can really make some  
experiments on certain branches, and as sandboxes. And Walter can view  
this sandbox and maybe lucky enough to pick one good feature integrated in  
DMD.

4. This gives us a bit elegance. D compiles D.

This is *not* an urgent request. Cause DParser compare to DMD frontend is  
still not relatively stable. I'm trying to fix those bugs. Thanks to  
dstress. I can get a good many test cases in it.
Currently I guess about 1/3 test cases pass.

I'd love to listen how CONs think and how PROs think.

DavidL