public override void VisitIdentifierName(IdentifierNameSyntax node)
{
var s = "";
var up = node.HasParent<VariableDeclarationSyntax, FieldDeclarationSyntax>();
if (up == null)
{ }
else
{
s = "var ";
}
_2JS.Append(s);
base.VisitIdentifierName(node);
}