syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"Ok(Inserted::BecameNewSibling(last_lint))"}]}
source_snippet:         Ok(Inserted::BecameNewSibling(last_lint))
context_before:         self.insert_blindly(tcx, impl_def_id);
context_after:     }