syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"self_ty"}]}
source_snippet:                 self_ty = impl_trait_ref.self_ty();
context_before:                 *impl_trait_ref = self.tcx.normalize_erasing_regions(typing_env, *impl_trait_ref);
context_after:             }