AddModelError does not work for expressions that ends with indexer.

[matejmn]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

AddModelError extension method does not work for expressions that ends with indexer (e.g. m => m.Numbers[0]).

The problem is that every expression that do not directly returns object is wrapped by Convert expression and IsConversionToObject method returns true only if NodeType equals to ExpressionType.MemberAccess.
I think it should return true also for ExpressionType.Call or ExpressionType.ArrayIndex.

If I run this code in C# Interactive concole in Visual Studio:

#r "c:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\8.0.7\Microsoft.AspNetCore.Mvc.ViewFeatures.dll"
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
class Model
{
    public List<int> Numbers { get; set; }
}
var state = new ModelStateDictionary();
state.AddModelError<Model>(m => m.Numbers[0], "Error");
state.Keys.First()

it returns empty string:

""

Expected Behavior

It should return:

"Numbers[0]"

Steps To Reproduce

No response

Exceptions (if any)

No response

.NET Version

No response

Anything else?

No response