syntax_data: {"ast_node_type":"other","tokens":[{"end":16,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:         } else {
context_before:             self.non_blanket_impls.entry(st).or_default().push(impl_def_id)
context_after:             debug!("insert_blindly: impl_def_id={:?} st=None", impl_def_id);