fn to_adt_syntax(
db: &dyn SourceDatabase,
tt: &TopSubtree,
call_site: Span,
) -> Result<(Adt, SpanMap), ExpandError>fn to_adt_syntax(
db: &dyn SourceDatabase,
tt: &TopSubtree,
call_site: Span,
) -> Result<(Adt, SpanMap), ExpandError>