syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":".filter(|def_id|"}]}
source_snippet:                     .filter(|def_id| tcx.trait_is_auto(*def_id))
context_before:                 elaborate::supertrait_def_ids(tcx, principal_def_id)
context_after:             }))