Hi Roman,

First a thank you for this great software.

Second, the class SpecialFormNode has broken (missing) c# code.

To reproduce:
Browse Interpreter/Ast/Statements/SpecialFormNode.cs
Search for "context.Language."

The broken code can be seen in the snippet below, context.Language. ends abruptly

public override void Init(AstContext context, ParseTreeNode treeNode) {
  base.Init(context, treeNode);
  var nodes = treeNode.GetMappedChildNodes();
  TargetRef = AddChild("Target", nodes[0]);
  TargetRef.UseType = NodeUseType.CallTarget;
  _targetName = nodes[0].FindTokenAndGetText();
  Arguments = AddChild("Args", nodes[1]);
  AsString = "Call " + _targetName;
  context.Language.
}