Fixed uncompilable C# code when having a function pointer with an enum pointer as a parameter.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator/Generators/CSharp/CSharpTypePrinter.cs

@@ -298,6 +298,9 @@ namespace CppSharp.Generators.CSharp
             Enumeration @enum;
             if (desugared.TryGetEnum(out @enum))
             {
+                if (MarshalKind == CSharpMarshalKind.GenericDelegate && isManagedContext)
+                    return IntPtrType;
+
                 // Skip one indirection if passed by reference
                 var param = Context.Parameter;
                 if (isManagedContext && param != null && (param.IsOut || param.IsInOut)

tests/CSharp/CSharp.h

@@ -624,6 +624,8 @@ public:
     int property();
     void setProperty(int value);
     void function(bool* ok = 0);
+    typedef void HasPointerToEnum(Property* pointerToEnum);
+    HasPointerToEnum* hasPointerToEnum;
 protected:
     void protectedFunction();
     int protectedProperty();