[plt-scheme] 'eval' function seems to completely ignore scopingrules.

[Majorinc, Kazimir]

Noel Welsh wrote:
> Almost all uses of eval have been subsumed by other features of (PLT) Scheme,making eval very rare in 'production' code.
>   
It is the matter of strategic decision. Eval is not necessary at all, 
but Lisp cannot fulfill the promise about "code=data" without almighty 
eval, and there is a large territory behind that. Whole Lisp community 
seems to be more in, say, pragmatic mood for good few decades.