Can't export a boolean array (bool[]) in C# (and passing it to an RPC doesn't work either)

[Steveplays28]

Godot version

v4.0.beta10.mono.official [d0398f6]

System information

Windows 10

Issue description

I can't export a boolean array in C#.
The compiler output says the type is unsupported for export.

D:\Repos\first-person-shooter\common\scripts\Weapon.cs(8,25): The type of the exported field is not supported: 'FirstPersonShooter.Weapon.BooleanArray'

On top of that, I'm also unable pass a boolean array through the RPC system (using Rpc() or RpcId() functions):

Argument 2: cannot convert from 'bool[]' to 'Godot.Variant'

Steps to reproduce

1. Export any bool[]:

[Export] public bool[] BooleanArray;

2. Try to build the project, which fails with the error in the description ("The type of the exported field is not supported").

Minimal reproduction project

N/A

[Steveplays28]

I suppose this is related to #70298 (relevant comment)?
I was not aware that support for exporting .NET collections was removed.

[hawkerm]

Yeah, I was trying to have an array of AnimatedSprite2D as a field or property and it's just never initialized, the array is empty in C#.

[ultrasuperpingu]

Enums array export is not working neither :)

[raulsntos]

• Closing as a duplicate of C# Export on List not possible anymore.  #70298

The only collections currently supported are the ones that are Variant-compatible as documented in the C# collections documentation. I want to re-add support for T[], List<T>, and Dictionary<TKey, TValue> where T is a Variant-compatible type. Follow the linked issue to track this.