Fixed the names when marshalling enum parameters in the C# end.

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

src/Generator/Generators/CSharp/CSharpMarshal.cs

@@ -528,7 +528,7 @@ namespace CppSharp.Generators.CSharp
                 case PrimitiveType.Float:
                 case PrimitiveType.Double:
                 case PrimitiveType.WideChar:
-                    Context.Return.Write(Helpers.SafeIdentifier(Context.Parameter.Name));
+                    Context.Return.Write(Context.Parameter.Name);
                     return true;
                 case PrimitiveType.Char16:
                     return false;
@@ -647,7 +647,7 @@ namespace CppSharp.Generators.CSharp
 
         public override bool VisitEnumDecl(Enumeration @enum)
         {
-            Context.Return.Write(Helpers.SafeIdentifier(Context.Parameter.Name));
+            Context.Return.Write(Context.Parameter.Name);
             return true;
         }
 

tests/Basic/Basic.Tests.cs

@@ -181,6 +181,7 @@ public class BasicTests : GeneratorTestFixture
     {
         var foo2 = new Foo2 {C = 2};
         Foo2 result = foo2 << 3;
+        foo2.testKeywordParam(IntPtr.Zero, Bar.Item.Item1, 1);
         Assert.That(result.C, Is.EqualTo(16));
     }
 

tests/Basic/Basic.cpp

@@ -49,7 +49,7 @@ char Foo2::testCharMarshalling(char c)
     return c;
 }
 
-void Foo2::testKeywordParam(void* where)
+void Foo2::testKeywordParam(void* where, Bar::Item event, int ref)
 {
 }
 

tests/Basic/Basic.h

@@ -75,7 +75,7 @@ public:
     Foo2 operator<<(signed long l);
     Bar valueTypeField;
     char testCharMarshalling(char c);
-    void testKeywordParam(void* where);
+    void testKeywordParam(void* where, Bar::Item event, int ref);
 };
 
 DLL_API Bar::Item operator |(Bar::Item left, Bar::Item right);