Fix internal function variables not binding properly when allowing all objects

Upsilon/Binder/VariableSymbols/InternalFunctionVariableSymbol.cs

@@ -41,6 +41,8 @@ namespace Upsilon.Binder.VariableSymbols
                     {
                         continue;
                     }
+                    if (functionParameter.ValidTypes == Type.Unknown)
+                        continue;
 
                     if (!functionParameter.ValidTypes.Type.HasFlag(callingParameter.Type))
                     {