pragma parameters missing after SyntaxTree.ToString()

[asker9]

Hello

try this code:
ICSharpcode.NRefactory.CSharp.CSharpParser parser = new ICSharpcode.NRefactory.CSharp.CSharpParser();
SyntaxTree CCU = parser.Parse("#pragma warning disable 414","a.cs");
Console.Write( CCU.ToString() );

result:

pragma

The parameters "warning disable 414" for "#pragma" is missing