Added unit tests for ManyObjectResolverBase for the different lifetime scope of instantiated objects.

src/Umbraco.Core/LegacyTransientObjectsResolver.cs

@@ -32,11 +32,11 @@ namespace Umbraco.Core
 		/// TODO: However, it would make much more sense to do this and would speed up the application plus this would make the GetById method much easier.
 		/// </remarks>
 		protected LegacyTransientObjectsResolver(IEnumerable<Type> refreshers)
-			: base(true)
+			: base(ObjectLifetimeScope.Transient) // false = new objects every time
 		{
 			foreach (var l in refreshers)
 			{
-				this.Add(l);
+				this.AddType(l);
 			}
 		}
 		#endregion