Object.toString, toHash, opCmp, opEquals

[Walter Bright]

On 4/26/2024 7:00 AM, Timon Gehr wrote:
> This is not a theoretical problem either. This kind of introspection would be 
> the proper fix for the following issue with std.typecons.Tuple.toString:
> 
> ```d
> import std.stdio, std.typecons;
> class C{
>      override string toString()=>"correct";
> }
> 
> void main(){
>      writeln(new C()); // "correct"
>      writeln(tuple(new C())); // "Tuple!(C)(const(tt.C))"
> }
> ```
> 
> This is also the same issue that prevents tuples with range members from being 
> printed properly.

I would like to see "new C()" and "tuple(new C())" mean exactly the same thing. 
After all, with the builtin-tuples (not the struct library version) they are the 
same thing.