Introduced the SystemAssemblyIsIncluded bool

Author: SolidAlloy

Editor/Drawers/TypeDropdownDrawer.cs

@@ -2,8 +2,10 @@
 {
     using System;
     using System.Collections.Generic;
+    using System.Linq;
     using System.Reflection;
     using TypeDropdown;
+    using UnityEngine;
     using Util;
 
     /// <summary>
@@ -73,13 +75,18 @@ private SortedSet<TypeItem> GetFilteredTypes()
                 typeRelatedAssemblies,
                 _attribute);
 
+            bool systemAssemblyIsIncluded = typeRelatedAssemblies.Any(assembly => assembly.FullName == "System");
+
             var sortedTypes = new SortedSet<TypeItem>(new TypeItemComparer());
 
             for (int i = 0; i < filteredTypes.Count; i++)
             {
                 var type = filteredTypes[i];
                 if (type.FullName != null)
+                {
                     sortedTypes.Add(new TypeItem(type, _attribute.Grouping));
+                }
+
             }
 
             return sortedTypes;

Editor/TypeDropdown/TypeItem.cs

@@ -2,6 +2,7 @@
 {
     using System;
     using System.Collections.Generic;
+    using NUnit.Framework;
     using Util;
 
     /// <summary>
@@ -15,8 +16,12 @@ internal readonly struct TypeItem
         public readonly string FullTypeName;
 
         public TypeItem(Type type, Grouping grouping)
+            : this(type, type.FullName ?? string.Empty, grouping) { }
+
+        public TypeItem(Type type, string fullTypeName, Grouping grouping)
         {
-            FullTypeName = type.FullName ?? string.Empty;
+            Assert.IsNotNull(fullTypeName);
+            FullTypeName = fullTypeName;
             Type = type;
             Path = TypeNameFormatter.Format(Type, FullTypeName, grouping);
         }