Trimmable - Winforms crash on startup

[Doprez]

Release Type: Official Release

Version: 4.2.0.2188

Platform(s): Windows

Describe the bug
Publish Trimmable seems to remove something that Winforms needs to properly function.

To Reproduce
Steps to reproduce the behavior:

1. use a default project
2. publish with the trimmable option set to true Publish Trimmable

Expected behavior
Crash bad. No crash good.

Log and callstacks

System.InvalidCastException: Specified cast is not valid.
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(Int32 errorCode, IntPtr errorInfo)
   at Windows.Win32.Foundation.HRESULT.ThrowOnFailure(IntPtr errorInfo)
   at Windows.Win32.ComHelpers.GetComPointer[T](Object object)
   at Windows.Win32.ComHelpers.GetComScope[T](Object object)
   at System.Windows.Forms.RichTextBox.UpdateOleCallback()
   at System.Windows.Forms.RichTextBox.OnHandleCreated(EventArgs e)
   at System.Windows.Forms.Control.WmCreate(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.TextBoxBase.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(HWND hWnd, MessageId msg, WPARAM wparam, LPARAM lparam)

Additional context
This was found by Discord user DraftedDev and discussed in Discord (https://discord.com/channels/500285081265635328/500292370923913222/1286008639303192628)

Apparently the Trimmable option only affects Winforms as SDL worked.

[Kryptos-FR]

For context, Winforms is not completely trim compatible. Tracking issue: dotnet/winforms#4649. WPF has the same problem: dotnet/wpf#3811.