syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"kind.descr(def_id.to_def_id())"}]}
source_snippet:                 kind.descr(def_id.to_def_id())
context_before:                 "`assumed_wf_types` not defined for {} `{def_id:?}`",
context_after:             );