{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"ty::Closure(..)"}]}
                ty::Closure(..) => ExternAbi::RustCall,
                ty::FnDef(..) => body_ty.fn_sig(tcx).abi(),
                ty::CoroutineClosure(..) => ExternAbi::RustCall,