syntax_data: {"ast_node_type":"function","tokens":[{"end":100,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn lower_path(&mut self, qpath: &hir::QPath<'_>, id: hir::HirId, span: Span) -> Box<Pat<'tcx>> {
context_before:     #[instrument(skip(self), level = "debug")]
context_after:         let ty = self.typeck_results.node_type(id);