public virtual void VisitYieldReturnStatement(YieldReturnStatement yieldReturnStatement)
{
StartNode(yieldReturnStatement);
WriteKeyword(YieldReturnStatement.YieldKeywordRole);
WriteKeyword(YieldReturnStatement.ReturnKeywordRole);
Space();
yieldReturnStatement.Expression.AcceptVisitor(this);
Semicolon();
EndNode(yieldReturnStatement);
}