syntax_data: {"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"Self"}]}
source_snippet:         Self { ty, next_sibling: None, first_child: None, proj_elem, value_index: None }
context_before:     fn new(ty: Ty<'tcx>, proj_elem: Option<TrackElem>) -> Self {
context_after:     }