syntax_data: {"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"ty::Binder::dummy(AutoImplConstituents"}]}
source_snippet:                 ty::Binder::dummy(AutoImplConstituents { types: vec![ty], assumptions: vec![] })
context_before:                 let ty = self.infcx.shallow_resolve(args.as_closure().tupled_upvars_ty());
context_after:             }