syntax_data: {"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let parent = tcx.impl_parent(impl_def_id).unwrap_or(trait_id);
context_before:         } else {
context_after:             sg.record_impl_from_cstore(tcx, parent, impl_def_id)