syntax_data: {"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"*impl_trait_ref"}]}
source_snippet:                 *impl_trait_ref = self.tcx.normalize_erasing_regions(typing_env, *impl_trait_ref);
context_before:                 assert_eq!(impl_trait_ref.self_ty(), self_ty);
context_after:                 self_ty = impl_trait_ref.self_ty();