Add ability to provide array type conversion for a type

[hawkerm]

If I create a class and give it an implicit conversion operator:

        public SomeClass(string value) 
        {
            // ...
        }

        public static implicit operator SomeClass(string value)
        {
            return new SomeClass(value);
        }

It'd be nice to also be able to provide an array converter as well, e.g.

        public static implicit operator SomeClass[](string[] values)
        {
            return values.Select(value => new SomeClass(value)).ToArray();
        }

Currently, the implicit conversion won't happen automatically for the array (even with the singular implicit converter defined), so making an extension to the other type to provide a helper seems to be the only route but a bit messier.

Also found similar questions for this process dating back to 2010 here.

[danmoseley]

This seems like an initiative that should start in the Roslyn language repo. Do you want to move it there?

[karelz]

It was moved to dotnet/csharplang#1546