BESEN ES5 implementation

[Dmitry A. Soshnikov]

Seems, the first complete (as author says) implementation of ES5.

http://vserver.rosseaux.net/projects/BESEN/

Written on Object Pascal, there is runnable exe-file (sort of studio
and editor to run the code). I didn't check in completely, but it will
be good to know.

 

[BeRo]

Noticed one glitch:

(function(x){
   print('0' in arguments); // throws error but shouldn't

})(1);

And shouldn't these 2 be identical?

print(function(){
  "use strict"; return this}.call(void 0)); // object

print(function(){
   "use strict"; return this}.call(undefined)); // undefined

...strange as `print(void 0 === undefined)` prints `true`

I've fixed this now. This both was just a bytecode generator bug in
the register allocator (a small stupid typing error). You can find the
newest version at http://besen.sourceforge.net/ in the SVN.