Explicit Event Implementation Does Not Emit FQN

[JasonBock]

To reproduce:

var code =
	"""
	using Rocks;
	using System;

	namespace EventStuff
	{
		public class Event : EventArgs { }
			
		public delegate void DomEventHandler(Object sender, Event ev);
	}

	namespace GlobalHandlers
	{
		public interface IGlobalEventHandlers
		{
			event global::EventStuff.DomEventHandler CanPlay;
		}
	}

	namespace Controllers
	{
		public interface IMediaController
		{
			event global::EventStuff.DomEventHandler CanPlay;
		}
	}
			
	namespace MockTests
	{
		public interface IHtmlMediaElement
			: global::GlobalHandlers.IGlobalEventHandlers, global::Controllers.IMediaController
		{
			void Foo();
		}
			
		public static class Test
		{
			public static void Generate()
			{
				var rock = Rock.Create<IHtmlMediaElement>();
			}
		}
	}
	""";

This wiil create errors like this:

error CS0535: 'CreateExpectationsOfIHtmlMediaElementExtensions.RockIHtmlMediaElement' does not implement interface member 'IMediaController.CanPlay'
error CS0535: 'CreateExpectationsOfIHtmlMediaElementExtensions.RockIHtmlMediaElement' does not implement interface member 'IGlobalEventHandlers.CanPlay'
error CS0246: The type or namespace name 'IGlobalEventHandlers' could not be found (are you missing a using directive or an assembly reference?)
error CS0538: 'IGlobalEventHandlers' in explicit interface declaration is not an interface
error CS0246: The type or namespace name 'IMediaController' could not be found (are you missing a using directive or an assembly reference?)
error CS0538: 'IMediaController' in explicit interface declaration is not an interface

The problem is the event implementation does not emit FQNs for the two interfaces.

This was found in AngleSharp.Html.Dom.IHtmlMediaElement.