syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"self.non_blanket_impls.entry(st).or_default().push(impl_def_id)"}]}
source_snippet:             self.non_blanket_impls.entry(st).or_default().push(impl_def_id)
context_before:             debug!("insert_blindly: impl_def_id={:?} st={:?}", impl_def_id, st);
context_after:         } else {