Comma expression as tuple operator [was Tuples, C#, Java, language

[BCS]

> I believe he could replace comma operator with AOC (Any Other
> Character)  operator: just replace comma with "something" which is not
> yet used.  Choose some fancy-looking Unicode character that no one
> will really use  but the compiler itself to generate intermediate
> code.


If you don't expect it to be written in code, then there is no reason at 
all to even defined what char is used because the compiler doesn't internally 
handle code as text. You can just define it as an AST node and be done with 
it.