syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"Some(ty::Instance::new_raw(trait_item_id,"}]}
source_snippet:                 Some(ty::Instance::new_raw(trait_item_id, args))
context_before:                 let args = tcx.erase_regions(rcvr_args);
context_after:             } else {