Reworked type map finding to take typedefs in account by desugaring the type one layer at a time and searching for that typemap.

src/Generator/Types/TypeMap.cs

@@ -131,6 +131,10 @@ namespace CppSharp.Types
         }
 
         public bool FindTypeMap(Type type, out TypeMap typeMap)
+        {
+            typeMap = null;
+
+            while (true)
             {
                 var typePrinter = new CppTypePrinter(this);
                 var output = type.Visit(typePrinter);
@@ -145,7 +149,14 @@ namespace CppSharp.Types
                 if (FindTypeMap(output, out typeMap))
                     return true;
 
+                var desugaredType = type.Desugar();
+                if (desugaredType == type)
                     return false;
+
+                type = desugaredType;
+            }
+
+            return true;
         }
 
         public bool FindTypeMap(string name, out TypeMap typeMap)