Update to the new conversion kinds names.

src/Generator/Generators/CLI/CLIHelpers.cs

@@ -438,7 +438,7 @@ namespace Cxxi.Generators.CLI
         {
             for (var i = 0; i < method.Parameters.Count; ++i)
             {
-                if (method.Conversion == MethodConversionType.FunctionToInstanceMethod
+                if (method.Conversion == MethodConversionKind.FunctionToInstanceMethod
                     && i == 0)
                     continue;
 

src/Generator/Generators/CLI/CLIMarshal.cs

@@ -439,7 +439,7 @@ namespace Cxxi.Generators.CLI
 
                 var method = Context.Function as Method;
                 if (method != null
-                    && method.Conversion == MethodConversionType.FunctionToInstanceMethod
+                    && method.Conversion == MethodConversionKind.FunctionToInstanceMethod
                     && Context.ParameterIndex == 0)
                 {
                     Return.Write("NativePtr");

src/Generator/Generators/CLI/CLISourcesTemplate.cs

@@ -276,7 +276,7 @@ namespace Cxxi.Generators.CLI
 
             var method = function as Method;
             if (method != null)
-                isInstanceFunction = method.Conversion == MethodConversionType.None;
+                isInstanceFunction = method.Conversion == MethodConversionKind.None;
             return isInstanceFunction;
         }