{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"Component::Placeholder(placeholder_ty)"}]}
            Component::Placeholder(placeholder_ty) => {
            Component::Param(param_ty) => self.param_or_placeholder_bound(param_ty.to_ty(self.tcx)),
                self.param_or_placeholder_bound(Ty::new_placeholder(self.tcx, placeholder_ty))