[Feature Request] Include `type` on `toc.yml`

[frarees]

Use case

I want to filter out TOC entries based on their member type. For example, to list only namespaces and classes.

Current behavior

toc.yml doesn't contain type information.

Note

When using memberLayout: "separatePages", the additional TOC entries pushed to the model contain this information.

How to reproduce

For example, given this source:

namespace Lib
{
    public class Lib
    {
        public enum MyEnum
        {
            Value1,
            Value2,
        }

        public class SubLib
        {
            public float Foo { get; private set; }
        }

        public MyEnum MyEnumField;
        public float Foo { get; private set; }
        public float Bar { get; set; }
        public int Baz;

        public void MyMethod()
        {
            System.Console.WriteLine("Hello, World!");
        }
    }
}

The generated model looks like this (pre-transformations):

And the HTML TOC looks like this:

Proposal

See #10090.

Note

This might require some attention to the templates, since there's assumptions based on entries having defined the type property - which makes the TOC render like this:

[frarees]

Addressed in #10090.