syntax_data: {"ast_node_type":"variable","tokens":[{"end":69,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let item_def_id = impl_item_ref.owner_id.to_def_id();
context_before:             tcx.arena.alloc_from_iter(impl_.items.iter().flat_map(|impl_item_ref| {
context_after:                 [item_def_id]