Fixed wrong indenting in output by using the block API for fields.

src/Generator/Generators/CLI/CLIHeadersTemplate.cs

@@ -271,7 +271,6 @@ namespace CppSharp.Generators.CLI
             if (@class.Fields.Any())
             {
                 PushBlock(CLIBlockKind.AccessSpecifier);
-                NewLine();
                 WriteLine("private:");
                 PopBlock(NewLineKind.IfNotEmpty);
 
@@ -436,11 +435,15 @@ namespace CppSharp.Generators.CLI
 
         private void GenerateField(Class @class, Field field)
         {
+            PushBlock(CLIBlockKind.Field, field);
+
             GenerateDeclarationCommon(field);
             if (@class.IsUnion)
                 WriteLine("[System::Runtime::InteropServices::FieldOffset({0})]",
                     field.Offset);
             WriteLine("{0} {1};", field.Type, SafeIdentifier(field.Name));
+
+            PopBlock(NewLineKind.Never);
         }
 
         public void GenerateClassEvents(Class @class)

src/Generator/Generators/CLI/CLITextTemplate.cs

@@ -47,6 +47,7 @@ namespace CppSharp.Generators.CLI
         public static int Finalizer = BlockKind.LAST + 18;
         public static int AccessSpecifier = BlockKind.LAST + 19;
         public static int Fields = BlockKind.LAST + 20;
+        public static int Field = BlockKind.LAST + 21;
     }
 
     /// <summary>