public virtual void VisitExternAliasDeclaration(ExternAliasDeclaration externAliasDeclaration)
{
StartNode(externAliasDeclaration);
WriteKeyword(Roles.ExternKeyword);
Space();
WriteKeyword(Roles.AliasKeyword);
Space();
WriteIdentifier(externAliasDeclaration.NameToken);
Semicolon();
EndNode(externAliasDeclaration);
}