syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"ty::GenericArgs::identity_for_item(self.tcx,"}]}
source_snippet:                                 ty::GenericArgs::identity_for_item(self.tcx, parent),
context_before:                                 impl_trait_ref.def_id,
context_after:                             );