syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"(_,"}]}
source_snippet:             (_, &ty::Dynamic(data, r, ty::Dyn)) => {
context_before:             // `T` -> `dyn Trait`
context_after:                 let mut object_dids = data.auto_traits().chain(data.principal_def_id());