Fixed incompilable generated C# code when having a function pointer returning a pointer.

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

src/Generator/Generators/CSharp/CSharpTypePrinter.cs

@@ -180,7 +180,13 @@ namespace CppSharp.Generators.CSharp
             if (!string.IsNullOrEmpty(args))
                 args = string.Format(", {0}", args);
 
-            return string.Format("Func<{0}{1}>", returnType.Visit(this), args);
+            PushContext(CSharpTypePrinterContextKind.GenericDelegate);
+
+            var returnTypePrinterResult = returnType.Visit(this);
+
+            PopContext();
+
+            return string.Format("Func<{0}{1}>", returnTypePrinterResult, args);
         }
 
         public static bool IsConstCharString(PointerType pointer)

tests/CSharpTemp/CSharpTemp.h

@@ -10,6 +10,7 @@ public:
     int operator[](unsigned int i);
     int& operator[](int i);
     int A;
+    int* (*functionPtrReturnsPtrParam)();
 
     static const int rename = 5;