Issue 607: make objc2pp a scripting tool

Reported by Nikolaus Schaller, May 1, 2014

1. handle #!/path
2. check if there is a $0.objcbin (or similar)
3. if not pipe through cpp
4. build AST
5. store tree in $0.objcbin (precompiled...)
6. if yes, load from $0.objcbin
7. execute tree by directly setting up classes and objects (needs to 
interpret C statements!)

This would allow to write scripts like

#!/usr/local/bin/objc
main() {
[Class method];
}

or call them as

objc file

similar to

python file
php file
...

and -l could just check for syntax errors
and -c would just compile

Generally this would make it a much ore useful command line tool. 
Not only compiler. Or sort of inter-piler :)

Comment 1 by Nikolaus Schaller, Jul 3, 2014

almost done - but syntax and tree generation not yet complete. 
Evaluator also does not do anything useful yet.

New ideas:
* allow to "run" compiled binaries through objc file.mobj
* Evaluator: safely check for array and integer overflows, NULL 
pointers etc.
* debugging???

mySTEP