{"ast_node_type":"variable","tokens":[{"end":58,"kind":"keyword","start":0,"text":"if"}]}
        if let GenericParamDefKind::Lifetime = self.kind {
    pub fn to_early_bound_region_data(&self) -> ty::EarlyParamRegion {
            ty::EarlyParamRegion { index: self.index, name: self.name }